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Merchant J, Müllertz A, Rades T, Bannow J. Functionalized calcium carbonate (FCC) as a novel carrier to solidify supersaturated self-nanoemulsifying drug delivery systems (super-SNEDDS). Eur J Pharm Biopharm 2023; 193:198-207. [PMID: 37926269 DOI: 10.1016/j.ejpb.2023.11.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 10/27/2023] [Accepted: 11/02/2023] [Indexed: 11/07/2023]
Abstract
Functionalized calcium carbonate (FCC), a novel pharmaceutical excipient, has shown promising properties in the field of oral drug delivery. The current study aimed at evaluating the feasibility of FCC as a carrier for the solidification of self-nanoemulsifying drug delivery systems (SNEDDS) containing the poorly water-soluble model drug carvedilol (CRV). Conventional, subsaturated SNEDDS (80 %-SNEDDSliquid) and supersaturated SNEDDS (200 %-SNEDDSliquid) were loaded onto FCC via physical adsorption at three ratios; 2.5:1, 3.0:1 and 3.5:1 (w/w) of FCC:SNEDDSliquid, respectively, generating free-flowing powders (SNEDDSFCC) with drug loading ranging from 0.8 % to 2.6 % (w/w) CRV. The emulsification of SNEDDSFCC in a USP II dissolution setup (in purified water) was characterized using dynamic light scattering, resulting in similar droplet sizes and PDIs as observed for their liquid counterparts. The morphology and physical state of the obtained SNEDDSFCC were characterized using scanning electron microscopy and differential scanning calorimetry. The physical stability and drug release upon dispersion were assessed as a function of storage time. The 200 %-SNEDDSliquid were physically stable for 6 days, however, solidification using FCC stabilized the supersaturated concentrations of CRV for a test period of up to 10 weeks (solidification ratios 3.0:1 and 3.5:1 (FCC:SNEDDSliquid)). SNEDDSFCC achieved an improved rate and extent of drug release upon dispersion compared to the crystalline CRV in tap water (pH 7.5), however, to a lesser extent than their liquid counterparts. After 8 weeks of storage (25 °C at dry conditions), FCC was still able to rapidly release the SNEDDSliquid and demonstrated the same rate and extent of drug release as freshly prepared samples. The solidification of 200 %-SNEDDSliquid in presence of FCC greatly improved the drug loading and showed an enhanced drug release profile compared to the conventional systems. In conclusion, FCC showed potential as a carrier for solidification of SNEDDS and for the development of novel supersaturated solid SNEDDS for the oral delivery of poorly water-soluble drugs.
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Affiliation(s)
- Jumana Merchant
- Department of Pharmacy, University of Copenhagen, Copenhagen, Denmark
| | - Anette Müllertz
- Department of Pharmacy, University of Copenhagen, Copenhagen, Denmark.
| | - Thomas Rades
- Department of Pharmacy, University of Copenhagen, Copenhagen, Denmark
| | - Jacob Bannow
- Department of Pharmacy, University of Copenhagen, Copenhagen, Denmark
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2
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Yilmaz Usta D, Olgac S, Timur B, Teksin ZS. Development and pharmacokinetic evaluation of Neusilin® US2-based S-SNEDDS tablets for bosentan: Fasted and fed states bioavailability, IVIS® real-time biodistribution, and ex-vivo imaging. Int J Pharm 2023; 643:123219. [PMID: 37433349 DOI: 10.1016/j.ijpharm.2023.123219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 07/07/2023] [Accepted: 07/08/2023] [Indexed: 07/13/2023]
Abstract
The study reported here aimed to develop and optimize the S-SNEDDS tablet of bosentan (BOS) and to investigate its pharmacokinetic and biodistribution properties. The BOS-loaded SNEDDS have been developed and characterized in a previous study. The BOS-loaded SNEDDS formulation was converted to S-SNEDDS using Neusilin® US2. The S-SNEDDS tablets were obtained using the direct compression technique, and in vitro dissolution, in vitro lipolysis, and ex-vivo permeability studies of the tablets were performed. The S-SNEDDS tablet and reference tablet (Tracleer®) were administered to male Wistar rats at 50 mg/kg dose by oral gavage in fasted and fed state conditions. The biodistribution of the S-SNEDDS tablet was investigated in Balb/c mice using fluorescent dye. The tablets were dispersed in distilled water before administration to animals. The relationship between in vitro dissolution data and in vivo plasma concentration was examined. The S-SNEDDS tablets showed 2.47, 7.49, 3.70, and 4.39 increases in the percentages of cumulative dissolution in FaSSIF, FeSSIF, FaSSIF-V2, and FeSSIF-V2, respectively, when compared to the reference, and increased the Cmax and AUC 2.65 and 1.28-fold and 4.73 and 2.37-fold in fasted and fed states, respectively, when compared to the reference. S-SNEDDS tablets also significantly reduced interindividual variability in both fasted and fed states (p < 0.05). The XenoLight™ DiR and VivoTag® 680XL labeled S-SNEDDS tablet formulation increased the real-time biodistribution in the body by factors of 2.4 and 3.4 and organ uptake and total emission increased by factors of 2.8 and 3.1, respectively. The IVIVR has been successfully established for S-SNEDDS tablets (R2 > 0.9). The present study confirms the potential of the S-SNEDDS tablet to enhance the in vitro and in vivo performance of BOS.
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Affiliation(s)
- Duygu Yilmaz Usta
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Gazi University, Etiler 06330, Ankara, Turkiye.
| | - Seval Olgac
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Gazi University, Etiler 06330, Ankara, Turkiye.
| | - Burcu Timur
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Gazi University, Etiler 06330, Ankara, Turkiye; Department of Pharmaceutical Technology, Faculty of Pharmacy, Zonguldak Bulent Ecevit University, Esenkoy, 67600, Zonguldak, Turkiye.
| | - Zeynep Safak Teksin
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Gazi University, Etiler 06330, Ankara, Turkiye.
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Preparation and In Vitro/Vivo Evaluation of New Celecoxib Solid Dispersions with Co-Carrier Containing Aerosil and Poloxamer 188. Pharm Chem J 2021. [DOI: 10.1007/s11094-021-02316-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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4
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Kim HT, Won DH, Ho MJ, Hwang HD, Jang SW, Kim M, Kang MJ. Effect of Oily Ingredients and Solid Adsorbents on the Chemical Stability of a Solid Dosage Form of Lubiprostone. B KOREAN CHEM SOC 2019. [DOI: 10.1002/bkcs.11940] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Hyung Tae Kim
- College of PharmacyDankook University, Cheonan Chungnam 31116 South Korea
| | - Dong Han Won
- Dong‐A Pharmaceutical Co. Ltd. Yongin Gyeonggi 17073 South Korea
- College of PharmacyPusan National University Busan 46241 South Korea
| | - Myoung Jin Ho
- College of PharmacyDankook University, Cheonan Chungnam 31116 South Korea
| | - Hyung Don Hwang
- Dong‐A Pharmaceutical Co. Ltd. Yongin Gyeonggi 17073 South Korea
| | - Sun Woo Jang
- Dong‐A Pharmaceutical Co. Ltd. Yongin Gyeonggi 17073 South Korea
| | - Min‐Soo Kim
- College of PharmacyPusan National University Busan 46241 South Korea
| | - Myung Joo Kang
- College of PharmacyDankook University, Cheonan Chungnam 31116 South Korea
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Jo K, Cho JM, Lee H, Kim EK, Kim HC, Kim H, Lee J. Enhancement of Aqueous Solubility and Dissolution of Celecoxib through Phosphatidylcholine-Based Dispersion Systems Solidified with Adsorbent Carriers. Pharmaceutics 2018; 11:pharmaceutics11010001. [PMID: 30577564 PMCID: PMC6358979 DOI: 10.3390/pharmaceutics11010001] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Revised: 12/18/2018] [Accepted: 12/19/2018] [Indexed: 01/25/2023] Open
Abstract
This study aimed to design phosphatidylcholine (PC)-based solid dispersion (SD) systems for enhancing the apparent aqueous solubility and dissolution of celecoxib (CLC), a selective cyclooxygenase-2 inhibitor with a highly hydrophobic property. Although PC-based dispersion formulations considerably increased solubilities of CLC, the lipidic texture of PC was not appropriate as a solid dosage form for oral administration of CLC. To mask the lipidic texture of PC-based matrices, Neusilin® US2, an adsorbent material with a porous structure and large surface area widely used in the pharmaceutical industry, was employed and thereby fully powderized PC-based dispersion formulations could be fabricated. However, PC matrices containing CLC strongly adsorbed to the pores of Neusilin® US2 was not able to be rapidly released. To address this problem, different hydrophilic materials were examined to promote the release of the CLC-dispersed PC matrices from Neusilin® US2. Among tested hydrophilic materials, croscarmellose sodium was the most suitable to facilitate fast drug dissolution from Neusilin® US2 particles, showing significantly enhanced apparent aqueous solubility and dissolution behavior of CLC. Through differential scanning calorimetry, X-ray diffraction, and Fourier transform infrared spectroscopy (FT-IR) analysis, a considerably reduced crystallinity of CLC dispersed in the PC-based dispersion formulations was demonstrated. The PC-based SD formulations developed in this study would be useful for improving the oral bioavailability of poorly soluble drugs such as CLC.
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Affiliation(s)
- Kanghee Jo
- College of Pharmacy, Chung-Ang University, Seoul 06974, Korea.
| | - Jae Min Cho
- College of Pharmacy, Chung-Ang University, Seoul 06974, Korea.
| | - Hyunjoo Lee
- College of Pharmacy, Chung-Ang University, Seoul 06974, Korea.
| | - Eun Kyung Kim
- Graduate School of Pharmaceutical Management, Chung-Ang University, Seoul 06974, Korea.
| | - Hong Chul Kim
- Graduate School of Pharmaceutical Management, Chung-Ang University, Seoul 06974, Korea.
| | - Hyeongmin Kim
- College of Pharmacy, Chung-Ang University, Seoul 06974, Korea.
| | - Jaehwi Lee
- College of Pharmacy, Chung-Ang University, Seoul 06974, Korea.
- Graduate School of Pharmaceutical Management, Chung-Ang University, Seoul 06974, Korea.
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6
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Development of a simple and practical method for estimating the liquid absorption of pharmaceutical porous materials using a capillary rise technique. ADV POWDER TECHNOL 2018. [DOI: 10.1016/j.apt.2018.08.027] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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7
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Stable and Fast-Dissolving Amorphous Drug Composites Preparation via Impregnation of Neusilin® UFL2. J Pharm Sci 2018; 107:170-182. [DOI: 10.1016/j.xphs.2017.10.007] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2017] [Revised: 10/03/2017] [Accepted: 10/05/2017] [Indexed: 01/21/2023]
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8
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Development of solid SEDDS, VI: Effect of precoating of Neusilin® US2 with PVP on drug release from adsorbed self-emulsifying lipid-based formulations. Eur J Pharm Sci 2017; 110:124-133. [DOI: 10.1016/j.ejps.2017.02.022] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2016] [Revised: 02/10/2017] [Accepted: 02/13/2017] [Indexed: 11/24/2022]
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9
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Maher S, Mrsny RJ, Brayden DJ. Intestinal permeation enhancers for oral peptide delivery. Adv Drug Deliv Rev 2016; 106:277-319. [PMID: 27320643 DOI: 10.1016/j.addr.2016.06.005] [Citation(s) in RCA: 218] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Revised: 06/07/2016] [Accepted: 06/09/2016] [Indexed: 12/15/2022]
Abstract
Intestinal permeation enhancers (PEs) are one of the most widely tested strategies to improve oral delivery of therapeutic peptides. This article assesses the intestinal permeation enhancement action of over 250 PEs that have been tested in intestinal delivery models. In depth analysis of pre-clinical data is presented for PEs as components of proprietary delivery systems that have progressed to clinical trials. Given the importance of co-presentation of sufficiently high concentrations of PE and peptide at the small intestinal epithelium, there is an emphasis on studies where PEs have been formulated with poorly permeable molecules in solid dosage forms and lipoidal dispersions.
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10
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Alsulays BB, Kulkarni V, Alshehri SM, Almutairy BK, Ashour EA, Morott JT, Alshetaili AS, Park JB, Tiwari RV, Repka MA. Preparation and evaluation of enteric coated tablets of hot-melt extruded lansoprazole. Drug Dev Ind Pharm 2016; 43:789-796. [PMID: 27486807 DOI: 10.1080/03639045.2016.1220567] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The objective of this work was to use hot-melt extrusion (HME) technology to improve the physiochemical properties of lansoprazole (LNS) to prepare stable enteric coated LNS tablets. For the extrusion process, we chose Kollidon® 12 PF (K12) polymeric matrix. Lutrol® F 68 was selected as the plasticizer and magnesium oxide (MgO) as the alkalizer. With or without the alkalizer, LNS at 10% drug load was extruded with K12 and F68. LNS changed to the amorphous phase and showed better release compared to that of the pure crystalline drug. Inclusion of MgO improved LNS extrudability and release and resulted in over 80% drug release in the buffer stage. Hot-melt extruded LNS was physically and chemically stable after 12 months of storage. Both formulations were studied for compatibility with Eudragit® L100-55. The optimized formulation was compressed into a tablet followed by coating process utilizing a pan coater using L100-55 as an enteric coating polymer. In a two-step dissolution study, the release profile of the enteric coated LNS tablets in the acidic stage was less than 10% of the LNS, while that in the buffer stage was more than 80%. Drug content analysis revealed the LNS content to be 97%, indicating the chemical stability of the enteric coated tablet after storage for six months. HME, which has not been previously used for LNS, is a valuable technique to reduce processing time in the manufacture of enteric coated formulations of an acid-sensitive active pharmaceutical ingredient as compared to the existing methods.
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Affiliation(s)
- Bader B Alsulays
- a Department of Pharmaceutics and Drug Delivery, School of Pharmacy , The University of Mississippi , Oxford , MS , USA.,b Department of Pharmaceutics, College of Pharmacy , Prince Sattam Bin Abdulaziz University , Alkharj , Saudi Arabia
| | - Vijay Kulkarni
- a Department of Pharmaceutics and Drug Delivery, School of Pharmacy , The University of Mississippi , Oxford , MS , USA
| | - Sultan M Alshehri
- c Department of Pharmaceutics, College of Pharmacy , King Saud University , Riyadh , Saudi Arabia
| | - Bjad K Almutairy
- a Department of Pharmaceutics and Drug Delivery, School of Pharmacy , The University of Mississippi , Oxford , MS , USA
| | - Eman A Ashour
- a Department of Pharmaceutics and Drug Delivery, School of Pharmacy , The University of Mississippi , Oxford , MS , USA
| | - Joseph T Morott
- a Department of Pharmaceutics and Drug Delivery, School of Pharmacy , The University of Mississippi , Oxford , MS , USA
| | - Abdullah S Alshetaili
- b Department of Pharmaceutics, College of Pharmacy , Prince Sattam Bin Abdulaziz University , Alkharj , Saudi Arabia
| | - Jun-Bom Park
- a Department of Pharmaceutics and Drug Delivery, School of Pharmacy , The University of Mississippi , Oxford , MS , USA
| | - Roshan V Tiwari
- a Department of Pharmaceutics and Drug Delivery, School of Pharmacy , The University of Mississippi , Oxford , MS , USA
| | - Michael A Repka
- a Department of Pharmaceutics and Drug Delivery, School of Pharmacy , The University of Mississippi , Oxford , MS , USA.,d Pii Center for Pharmaceutical Technology, School of Pharmacy , The University of Mississippi , Oxford , MS , USA
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11
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Fujicalin®-based solid supersaturable self-emulsifying drug delivery system (S-SEDDS) of tacrolimus for enhanced dissolution rate and oral absorption. JOURNAL OF PHARMACEUTICAL INVESTIGATION 2015. [DOI: 10.1007/s40005-015-0220-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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12
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Alai M, Lin WJ. Application of nanoparticles for oral delivery of acid-labile lansoprazole in the treatment of gastric ulcer: in vitro and in vivo evaluations. Int J Nanomedicine 2015; 10:4029-41. [PMID: 26124659 PMCID: PMC4476456 DOI: 10.2147/ijn.s82366] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
The aim of this study was to develop nanoparticles for oral delivery of an acid-labile drug, lansoprazole (LPZ), for gastric ulcer therapy. LPZ-loaded positively charged Eudragit(®) RS100 nanoparticles (ERSNPs-LPZ) and negatively charged poly(lactic-co-glycolic acid) nanoparticles (PLGANPs-LPZ) were prepared. The effect of charge on nanoparticle deposition in ulcerated and non-ulcerated regions of the stomach was investigated. The cellular uptake of nanoparticles in the intestine was evaluated in a Caco-2 cell model. The pharmacokinetic performance and ulcer healing response of LPZ-loaded nanoparticles following oral administration were evaluated in Wistar rats with induced ulcers. The prepared drug-loaded ERSNPs-LPZ and PLGANPs-LPZ possessed opposite surface charge (+38.5±0.3 mV versus -27.3±0.3 mV, respectively) and the particle size was around 200 nm with a narrow size distribution. The negatively charged PLGANPs adhered more readily to the ulcerated region (7.22%±1.21% per cm(2)), whereas the positively charged ERSNPs preferentially distributed in the non-ulcerated region (8.29%±0.35% per cm(2)). Both ERSNPs and PLGANPs were prominent uptake in Caco-2 cells, too. The nanoparticles sustained and prolonged LPZ concentrations up to 24 hours, and the half-life and mean residence time of LPZ were prolonged by 3.5-fold and 4.5-fold, respectively, as compared with LPZ solution. Oral administration of LPZ-loaded nanoparticles healed 92.6%-95.7% of gastric ulcers in Wistar rats within 7 days.
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Affiliation(s)
- Milind Alai
- Graduate Institute of Pharmaceutical Sciences, School of Pharmacy, National Taiwan University, Taipei, Taiwan
| | - Wen Jen Lin
- Graduate Institute of Pharmaceutical Sciences, School of Pharmacy, National Taiwan University, Taipei, Taiwan
- Drug Research Center, College of Medicine, National Taiwan University, Taipei, Taiwan
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13
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Krupa A, Szlęk J, Jany BR, Jachowicz R. Preformulation studies on solid self-emulsifying systems in powder form containing magnesium aluminometasilicate as porous carrier. AAPS PharmSciTech 2015; 16:623-35. [PMID: 25501870 PMCID: PMC4444641 DOI: 10.1208/s12249-014-0247-z] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2014] [Accepted: 11/19/2014] [Indexed: 11/30/2022] Open
Abstract
The influence of alkaline and the neutral grade of magnesium aluminometasilicate as a porous solid carrier for the liquid self-emulsifying formulation with ibuprofen is investigated. Ibuprofen is dissolved in Labrasol, then this solution is adsorbed on the silicates. The drug to the silicate ratio is 1:2, 1:4, and 1:6, respectively. The properties of formulations obtained are analyzed, using morphological, porosity, crystallinity, and dissolution studies. Three solid self-emulsifying (S-SE) formulations containing Neusilin SG2 and six consisting of Neusilin US2 are in the form of powder without agglomerates. The nitrogen adsorption method shows that the solid carriers are mesoporous but they differ in a specific surface area, pore area, and the volume of pores. The adsorption of liquid SE formulation on solid silicate particles results in a decrease in their porosity. If the neutral grade of magnesium aluminometasilicate is used, the smallest pores, below 10 nm, are completely filled with liquid formulation, but there is still a certain number of pores of 40–100 nm. Dissolution studies of liquid SEDDS carried out in pH = 1.2 show that Labrasol improves the dissolution of ibuprofen as compared to the pure drug. Ibuprofen dissolution from liquid SE formulations examined in pH of 7.2 is immediate. The adsorption of the liquid onto the particles of the silicate causes a decrease in the amount of the drug released. Finally, more ibuprofen is dissolved from S-SE that consist of the neutral grade of magnesium aluminometasilicate than from the formulations containing the alkaline silicate.
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14
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Tsai TR, Cham TM, Wu YT. HPLC Determination of Lansoprazole and Method Application for the Formulation Development of Enteric-coated Lansoprazole Pellets. J CHIN CHEM SOC-TAIP 2015. [DOI: 10.1002/jccs.201500003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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15
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Yan HM, Sun E, Cui L, Jia XB, Jin X. Improvement in oral bioavailability and dissolution of tanshinone IIA by preparation of solid dispersions with porous silica. J Pharm Pharmacol 2015; 67:1207-14. [DOI: 10.1111/jphp.12423] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2014] [Accepted: 02/27/2015] [Indexed: 11/29/2022]
Abstract
Abstract
Objectives
This study aims to evaluate the oral bioavailability and dissolution of tanshinone IIA (tanIIA) by preparation of solid dispersions (SDs) with porous silica.
Methods
SDs of tanIIA were prepared using a solvent method. The physicochemical properties, dissolution property, drug stability and in-vivo performance of the SDs prepared were all evaluated.
Key findings
Compared with tanIIA alone and corresponding physical mixtures, tanIIA from SDs showed remarkably improved in-vitro dissolution rate. After forming the SDs, tanIIA changed into an amorphous state, which can infer from differential scanning calorimetry (DSC) and X-ray powder diffraction (XRPD). Fourier transform infrared spectroscopy (FTIR) also revealed the presence of interactions between tanIIA and porous silica in SDs. During the stability study, there is no significant decreasing in either the in-vitro dissolution or the drug content, which was observed following storage at room temperature for 12 months. The results of a pharmacokinetic study in rats showed the areas under the concentration–time curve from 0 h to 24 h (AUC0–24h) for the SDs and tanIIA were 1019.87 ± 161.819 mg/h per litre and 343.70 ± 75.628 mg/h per litre, respectively.
Conclusions
SDs with porous silica as carrier could achieve superior oral bioavailability by improving drug dissolution, whereas drug stability could be maintained.
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Affiliation(s)
- Hong-mei Yan
- Key Laboratory of New Drug Delivery System of Chinese Materia Medica, Jiangsu Provincial Academy of Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - E Sun
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Li Cui
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Xiao-bin Jia
- Key Laboratory of New Drug Delivery System of Chinese Materia Medica, Jiangsu Provincial Academy of Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Xin Jin
- Key Laboratory of New Drug Delivery System of Chinese Materia Medica, Jiangsu Provincial Academy of Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
- Department of pharmacy, Suqian First Hospital, Suqian, Jiangsu, China
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16
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Pharmaceutical properties of supramolecular assembly of co-loaded cardanol/triazole-halloysite systems. Int J Pharm 2015; 478:476-85. [DOI: 10.1016/j.ijpharm.2014.12.004] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2014] [Revised: 12/03/2014] [Accepted: 12/05/2014] [Indexed: 01/24/2023]
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17
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Tawfeek HM, Saleem IY, Roberts M. Dissolution Enhancement and Formulation of Rapid-Release Lornoxicam Mini-Tablets. J Pharm Sci 2014; 103:2470-83. [DOI: 10.1002/jps.24073] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2014] [Revised: 06/04/2014] [Accepted: 06/11/2014] [Indexed: 11/11/2022]
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18
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Fang Y, Wang G, Zhang R, Liu Z, Liu Z, Wu X, Cao D. Eudragit L/HPMCAS blend enteric-coated lansoprazole pellets: enhanced drug stability and oral bioavailability. AAPS PharmSciTech 2014; 15:513-21. [PMID: 24590548 DOI: 10.1208/s12249-013-0035-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2013] [Accepted: 08/20/2013] [Indexed: 11/30/2022] Open
Abstract
The objectives of the present work were to use blends of Eudragit L and hydroxypropyl methylcellulose acetate succinate (HPMCAS) as enteric film coatings for lansoprazole (LSP) pellets. The enteric-coated pellets were prepared with a fluid-bed coater. The influence of the blend ratio, type of plasticizer, plasticizer level, coating level, and curing conditions on gastric stability in vitro drug release and drug stability was evaluated. Furthermore, the bioavailability of the blend-coated pellets in beagle dogs was also performed. The blend-coated pellets exhibited significant improvement of gastric stability and drug stability compared to the pure polymer-coated pellets. Moreover, the AUC values of blend-coated pellets were greater than that of the pure polymer-coated pellets. It was concluded that the using blends of Eudragit L and HPMCAS as enteric film coatings for LSP pellets improved the drug stability and oral bioavailability.
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19
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Alai M, Lin WJ. Novel lansoprazole-loaded nanoparticles for the treatment of gastric acid secretion-related ulcers: in vitro and in vivo pharmacokinetic pharmacodynamic evaluation. AAPS JOURNAL 2014; 16:361-72. [PMID: 24519468 DOI: 10.1208/s12248-014-9564-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2013] [Accepted: 01/06/2014] [Indexed: 12/14/2022]
Abstract
The objective of this study is to combine nanoparticle design and enteric coating technique to sustain the delivery of an acid-labile drug, lansoprazole (LPZ), in the treatment of acid reflux disorders. Lansoprazole-loaded Eudragit® RS100 nanoparticles (ERSNP-LPZ) as well as poly(lactic-co-glycolic acid) (PLGA) nanoparticles (PLGANP-LPZ) were prepared using a solvent evaporation/extraction method. The effects of nanoparticle charge and permeation enhancers on lansoprazole uptake was assessed in Caco-2 cells. The confocal microscopic images revealed the successful localization of nanoparticles in the cytoplasm of Caco-2 cells. The cellular uptake of positively charged Eudragit nanoparticles was significantly higher than that of negatively charged PLGA nanoparticles, which were enhanced by sodium caprate via the transcellular pathway. Both types of nanoparticles exhibited sustained drug release behavior in vitro. The oral administration of enteric-coated capsules filled with nanoparticles sustained and prolonged the LPZ concentration up to 24 h in ulcer-induced Wistar rats, and 92.4% and 89.2% of gastric ulcers healed after a 7-day treatment with either EC-ERSNP1010-Na caprate or EC-PLGANP1005-Na caprate, respectively.
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Affiliation(s)
- Milind Alai
- Graduate Institute of Pharmaceutical Sciences, School of Pharmacy, National Taiwan University, F 12 NO. 1 Jen Ai Rd. Sec. 1, Taipei, 100, Taiwan
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Gumaste SG, Pawlak SA, Dalrymple DM, Nider CJ, Trombetta LD, Serajuddin ATM. Development of Solid SEDDS, IV: Effect of Adsorbed Lipid and Surfactant on Tableting Properties and Surface Structures of Different Silicates. Pharm Res 2013; 30:3170-3185. [PMID: 23797464 PMCID: PMC3841658 DOI: 10.1007/s11095-013-1114-4] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2013] [Accepted: 06/04/2013] [Indexed: 12/03/2022]
Abstract
PURPOSE To compare six commonly available silicates for their suitability to develop tablets by adsorbing components of liquid lipid-based drug delivery systems. METHODS The tabletability of Aerosil® 200, Sipernat® 22, Sylysia® 350, Zeopharm® 600, Neusilin® US2 and Neusilin® UFL2 were studied by compressing each silicate into tablets in the presence of 20% microcrystalline cellulose and measuring the tensile strength of tablets produced. Three components of lipid based formulations, namely, Capmul® MCM EP (glycerol monocaprylocaprate), Captex® 355 EP/NF (caprylic/capric triglycerides) and Cremophor® EL (PEG-35 castor oil), were adsorbed individually onto the silicates at 1:1 w/w, and the mixtures were then compressed into tablets. The SEM photomicrographs of neat silicates and their 1:1 w/w mixtures (also 1:2 and 1:3 for Neusilin® US2 and Neusilin® UFL2) with one of the liquids (Cremophor® EL) were recorded. RESULTS Neat Aerosil® 200, Sipernat® 22 and Sylysia® 350 were non-tabletable to the minimum acceptable tensile strength of 1 MPa, and they were also non-tabletable in presence of liquid. While Zeopharm® 600, Neusilin® US2 and Neusilin® UFL2 were tabletable without the addition of liquids, only Neusilin® US2 retained acceptable tabletability with 1:1 liquid. The SEM images of silicate-liquid mixtures indicated that, except for Neusilin® US2, much of the adsorbed liquid distributed primarily at the surface of particles rather than inside pores, which hindered their compaction into tablets. CONCLUSION Among the six silicates studied, Neusilin® US2 was the only silicate able to produce tablets with acceptable tensile strength in presence of a lipid component at 1:1 w/w ratio due to the fact that the liquid was mostly adsorbed into the pores of the silicate rather than at the surface.
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Affiliation(s)
- Suhas G. Gumaste
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John’s University, 8000 Utopia Parkway, Queens, New York 11439 USA
| | - Sara A. Pawlak
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John’s University, 8000 Utopia Parkway, Queens, New York 11439 USA
| | | | | | - Louis D. Trombetta
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John’s University, 8000 Utopia Parkway, Queens, New York 11439 USA
| | - Abu T. M. Serajuddin
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John’s University, 8000 Utopia Parkway, Queens, New York 11439 USA
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Alai M, Lin WJ. A novel once daily microparticulate dosage form comprising lansoprazole to prevent nocturnal acid breakthrough in the case of gastro-esophageal reflux disease: preparation, pharmacokinetic and pharmacodynamic evaluation. J Microencapsul 2013; 30:519-29. [DOI: 10.3109/02652048.2012.758180] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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22
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Beg S, Jena SS, Patra CN, Rizwan M, Swain S, Sruti J, Rao MB, Singh B. Development of solid self-nanoemulsifying granules (SSNEGs) of ondansetron hydrochloride with enhanced bioavailability potential. Colloids Surf B Biointerfaces 2013; 101:414-23. [DOI: 10.1016/j.colsurfb.2012.06.031] [Citation(s) in RCA: 85] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2012] [Revised: 06/22/2012] [Accepted: 06/25/2012] [Indexed: 11/28/2022]
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Toward a detailed characterization of oil adsorbates as "solid liquids". Eur J Pharm Biopharm 2012; 84:172-82. [PMID: 23275113 DOI: 10.1016/j.ejpb.2012.12.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2012] [Revised: 12/04/2012] [Accepted: 12/09/2012] [Indexed: 11/21/2022]
Abstract
Solid lipid formulation systems are used to overcome oral bioavailability problems of poorly water-soluble drugs. One promising process is the conversion of a liquid lipid system in a free flowing powder by use of adsorbing excipients. The aim of this study was the detailed characterization of solid-liquid interactions in oil adsorbed to Fujicalin and Neusilin which were manufactured by means of dual asymmetric centrifugation or conventional mortar/pestle blending. The adsorption strength of the excipients was investigated by Benchtop-NMR and ESR spectroscopy revealing the highest adsorption power for the Neusilin products. The adsorbate production methods as well as the storage of the excipients impact their adsorption properties. Environmental scanning electron microscopy (ESEM) and confocal laser scanning microscopy (CLSM) show that dual asymmetric centrifugation leads to a smoothing of the particle surface, whereas the mortar/pestle blending results in an uneven surface and particle destruction. The oil distribution at the particles is inhomogeneous for both production methods. The micropolarity of the adsorbed oil was investigated by ESR spectroscopy and multispectral fluorescence imaging. The adsorbing process on Neusilin leads to an increased micropolarity of the oil component. The release of the oil component in aqueous media could be verified by Benchtop-NMR and multispectral fluorescence imaging.
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Lu Y, Guo T, Qi J, Zhang J, Wu W. Enhanced dissolution and stability of lansoprazole by cyclodextrin inclusion complexation: preparation, characterization, and molecular modeling. AAPS PharmSciTech 2012; 13:1222-9. [PMID: 22968546 DOI: 10.1208/s12249-012-9842-z] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2012] [Accepted: 08/15/2012] [Indexed: 11/30/2022] Open
Abstract
In this study, lansoprazole (LSP)/cyclodextrin (CD) inclusion complexes were prepared using a fluid bed coating technique, with β-cyclodextrin (β-CD) and 2-hydroxypropyl-β-cyclodextrin (HPCD) as the host molecules, respectively, to simultaneously improve the dissolution and stability of LSP. The dissolution rate and stability of LSP was dramatically enhanced by inclusion complexation regardless of CD type. LSP/HPCD inclusion complex was more stable under illumination than LSP/β-CD inclusion complex. Differential scanning calorimetry and powder X-ray diffractometry proved the absence of crystallinity in both LSP/CD inclusion complexes. Fourier transform infrared spectroscopy together with molecular modeling indicated that the benzimidazole of LSP was included in the cavity of both CDs, while LSP was more deeply included in HPCD than β-CD. The enhanced photostability was due to the inclusion of the sulfinyl moiety into the HPCD cavity. CD inclusion complexation could improve the dissolution and stability of LSP.
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Lai H, Lin K, Zhang W, Zhang Z, Jie L, Wu Y, He Q. Development of pH- and enzyme-controlled, colon-targeted, pulsed delivery system of a poorly water-soluble drug: preparation and in vitro evaluation. Drug Dev Ind Pharm 2012; 36:81-92. [PMID: 19640246 DOI: 10.3109/03639040903092335] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
BACKGROUND As conventional pH-controlled colon-targeted system used for oral drug delivery often shows a poor performance, a more effective way to preserve poorly water-soluble drug from releasing in upper gastrointestinal tract should be researched. METHOD The objective of this study was to develop a novel colon-targeted drug delivery system using guar gum and Eudragit as enzyme- and pH-based materials. Lansoprazole, a poorly water-soluble drug was used as model drug. Under three different conditions, the in vitro drug release behaviors of this newly developed system was evaluated, using β-mannanase, rat cecal content, and human fecal media to simulate the pH and enzyme during intestinal transit to the colon. RESULTS The released amount of lansoprazole in simulated small intestine fluid (pH 6.8) after 5 hours was less than 10% from the pH- and enzyme-controlled tablets compared with 80.01±0.3% in rat cecal content medium (pH 7.4).The degradation ability of human fecal slurries on PECCT-PT was independent of human age and gender. β-Mannanase did not have a similar effect on the degradation of polysaccharide as rat cecal enzymes and human fecal enzymes in our study. Scanning electron microscope study indicated that the dissolution mechanism of PECCT-PT should be corrosion. CONCLUSION The above results indicated this system could be served as a potential carrier to deliver poorly water-soluble drug specifically to the colon.
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Affiliation(s)
- Huiming Lai
- Key Laboratory of Drug Targeting, Ministry of Education, Sichuan University, Chengdu, PR China
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26
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Kuentz M. Lipid-based formulations for oral delivery of lipophilic drugs. DRUG DISCOVERY TODAY. TECHNOLOGIES 2012; 9:e71-e174. [PMID: 24064269 DOI: 10.1016/j.ddtec.2012.03.002] [Citation(s) in RCA: 85] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
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Yu M, Sun L, Li W, Lan Z, Li B, Tan L, Li M, Yang X. Investigation of structure and dissolution properties of a solid dispersion of lansoprazole in polyvinylpyrrolidone. J Mol Struct 2011. [DOI: 10.1016/j.molstruc.2011.08.019] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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28
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Hentzschel C, Alnaief M, Smirnova I, Sakmann A, Leopold C. Tableting properties of silica aerogel and other silicates. Drug Dev Ind Pharm 2011; 38:462-7. [DOI: 10.3109/03639045.2011.611806] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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29
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Shukla D, Chakraborty S, Singh S, Mishra B. Pastillation: A novel technology for development of oral lipid based multiparticulate controlled release formulation. POWDER TECHNOL 2011. [DOI: 10.1016/j.powtec.2011.02.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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30
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Kang MJ, Jung SY, Song WH, Park JS, Choi SU, Oh KT, Choi HK, Choi YW, Lee J, Lee BJ, Chi SC. Immediate release of ibuprofen from Fujicalin®-based fast-dissolving self-emulsifying tablets. Drug Dev Ind Pharm 2011; 37:1298-305. [DOI: 10.3109/03639045.2011.571695] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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31
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Chakraborty S, Shukla D, Vuddanda PR, Mishra B, Singh S. Effective in-vivo utilization of lipid-based nanoparticles as drug carrier for carvedilol phosphate. J Pharm Pharmacol 2011; 63:774-9. [DOI: 10.1111/j.2042-7158.2011.01270.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Abstract
Objectives
Lipid nanoparticles as carrier for oral drug administration improve gastrointestinal solubility of poorly soluble drugs and thus enhance bioavailability. However, basic drugs may undergo rapid dissolution from such solid dispersions in the stomach and precipitate in the intestine due to their higher solubility in acidic medium. Therefore, the objective of this work was to study the enhancement in bioavailability of carvedilol phosphate (basic drug) by providing an alkaline gastric environment to drug-loaded solid lipid nanoparticles.
Methods
An alkaline gastric environment in rats was created and maintained with oral administration of an antacid suspension 5 min before and 30 min post dosing.
Key findings
The formulation administered orally exhibited enhanced bioavailability (∼27%) when compared with drug suspension and sustained release behaviour when compared with formulation under ideal gastric conditions. The enhanced bioavailability is due to the presence of lipid nanoparticles as drug carrier while the sustained-release characteristic may be attributed to the presence of antacid, which resulted in elevation of gastric pH and reduced the drug's solubility.
Conclusions
It may be concluded that although lipid nanoparticles can be instrumental in improving bioavailability, additional sustained release may be achieved by targeting intestinal release of basic drugs from lipid vehicles, which is possible by incorporating them into suitable enteric-coated formulations.
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Affiliation(s)
- Subhashis Chakraborty
- Department of Pharmaceutics, Institute of Technology, Banaras Hindu University, Varanasi, India
| | - Dali Shukla
- Department of Pharmaceutics, Institute of Technology, Banaras Hindu University, Varanasi, India
| | | | - Brahmeshwar Mishra
- Department of Pharmaceutics, Institute of Technology, Banaras Hindu University, Varanasi, India
| | - Sanjay Singh
- Department of Pharmaceutics, Institute of Technology, Banaras Hindu University, Varanasi, India
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Sakata Y, Yamaguchi H. Improvement of sticking in tablet compaction for tocopherol acetate. Drug Dev Ind Pharm 2011; 37:1049-59. [DOI: 10.3109/03639045.2011.559246] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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33
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Planinšek O, Kovačič B, Vrečer F. Carvedilol dissolution improvement by preparation of solid dispersions with porous silica. Int J Pharm 2011; 406:41-8. [DOI: 10.1016/j.ijpharm.2010.12.035] [Citation(s) in RCA: 106] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2010] [Revised: 12/22/2010] [Accepted: 12/23/2010] [Indexed: 11/26/2022]
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Malzert-Fréon A, Hennequin D, Rault S. Partial least squares analysis and mixture design for the study of the influence of composition variables on lipidic nanoparticle characteristics. J Pharm Sci 2011; 99:4603-15. [PMID: 20845459 DOI: 10.1002/jps.22177] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Lipidic nanoparticles (NP), formulated from a phase inversion temperature process, have been studied with chemometric techniques to emphasize the influence of the four major components (Solutol®, Labrasol®, Labrafac®, water) on their average diameter and their distribution in size. Typically, these NP present a monodisperse size lower than 200 nm, as determined by dynamic light scattering measurements. From the application of the partial least squares (PLS) regression technique to the experimental data collected during definition of the feasibility zone, it was established that NP present a core-shell structure where Labrasol® is well encapsulated and contributes to the structuring of the NP. Even if this solubility enhancer is regarded as a pure surfactant in the literature, it appears that the oil moieties of this macrogolglyceride mixture significantly influence its properties. Furthermore, results have shown that PLS technique can be also used for predictions of sizes for given relative proportions of components and it was established that from a mixture design, the quantitative mixture composition to use in order to reach a targeted size and a targeted polydispersity index (PDI) can be easily predicted. Hence, statistical models can be a useful tool to control and optimize the characteristics in size of NP.
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Affiliation(s)
- A Malzert-Fréon
- Centre d'Etudes et de Recherche sur le Médicament de Normandie, UPRES EA 4258, FR CNRS 3038 INC3M, UFR des Sciences Pharmaceutiques, Université de Caen Basse-Normandie, bd Becquerel, 14032 Caen Cedex, France.
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35
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Shukla D, Chakraborty S, Singh S, Mishra B. Lipid-based oral multiparticulate formulations – advantages, technological advances and industrial applications. Expert Opin Drug Deliv 2011; 8:207-24. [DOI: 10.1517/17425247.2011.547469] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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36
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Mehanna MM, Motawaa AM, Samaha MW. Tadalafil inclusion in microporous silica as effective dissolution enhancer: optimization of loading procedure and molecular state characterization. J Pharm Sci 2010; 100:1805-18. [PMID: 21374616 DOI: 10.1002/jps.22420] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2010] [Revised: 10/20/2010] [Accepted: 11/08/2010] [Indexed: 11/09/2022]
Abstract
Tadalafil is an efficient drug used to treat erectile dysfunction characterized by poor water solubility, which has a negative influence on its bioavailability. Utilization of microporous silica represents an effective and facile technology to increase the dissolution rate of poorly soluble drugs. Our strategy involved directly introducing tadalafil as guest molecule into microporous silica as host material by incipient wetness impregnation method. To optimize tadalafil inclusion, response surface methodology (RSM) using 3(3) factorial design was utilized. Furthermore, to investigate the molecular state of tadalafil, Fourier-transform infrared spectroscopy, differential scanning calorimetery, thermal gravimetrical analysis, nitrogen adsorption, and powder X-ray diffraction (PXRD) were carried out. The results obtained pointed out that the quantity of microporous silica was the predominant factor that increased the loading efficiency. For the optimized formula, the loading efficiency was 42.50 wt %. Adsorption-desorption experiments indicated that tadalafil has been introduced into the micropores. Powder XRD and differential scanning calorimetry analyses revealed that tadalafil is arranged in amorphous form. In addition, the dissolution rate of tadalafil from the microporous silica was faster than that of free drug. Amorphous tadalafil occluded in microporous silica did not crystallize over 3 months. These findings contributed in opening a new strategy concerning the utilization of porous silica for the dissolution rate enhancement.
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Affiliation(s)
- Mohammed M Mehanna
- Department of Industrial Pharmacy, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt.
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37
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Chakraborty S, Shukla D, Vuddanda PR, Mishra B, Singh S. Utilization of adsorption technique in the development of oral delivery system of lipid based nanoparticles. Colloids Surf B Biointerfaces 2010; 81:563-9. [DOI: 10.1016/j.colsurfb.2010.07.058] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2010] [Revised: 07/25/2010] [Accepted: 07/26/2010] [Indexed: 10/19/2022]
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38
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Malzert-Fréon A, Saint-Lorant G, Hennequin D, Gauduchon P, Poulain L, Rault S. Influence of the introduction of a solubility enhancer on the formulation of lipidic nanoparticles with improved drug loading rates. Eur J Pharm Biopharm 2010; 75:117-27. [DOI: 10.1016/j.ejpb.2010.02.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2009] [Revised: 12/17/2009] [Accepted: 02/02/2010] [Indexed: 11/29/2022]
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39
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Bejugam NK, Parish HJ, Shankar GN. Influence of formulation factors on tablet formulations with liquid permeation enhancer using factorial design. AAPS PharmSciTech 2009; 10:1437-43. [PMID: 19957114 DOI: 10.1208/s12249-009-9345-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2008] [Accepted: 11/07/2009] [Indexed: 11/30/2022] Open
Abstract
For a drug with low bioavailability, a matrix tablet with liquid permeation enhancer (Labrasol) was formulated. Factorial design was used to evaluate the effect of three formulation factors: drug percentage, polymer type (Methocel K100M or Eudragit L 100-55), and tablet binder percentage (Plasdone S-630) on tablet characteristics. Tablets were prepared by direct compression and characterized. Compressibility index values ranged between 15.90% and 29.87% and tablet hardness values from 7.8 to 29.78 Kp. Eudragit-containing formulations had better compressibility index values with higher tablet hardness. Time for 75% of drug release (T75) was calculated, and formulations containing Eudragit L 100-55 had faster release rates than tablet formulations with Methocel K100M. Formulations with Methocel K100M fit well in the Higuchi model as indicated by their R2 values (>0.98). Among all the formulation factors studied, polymer type displayed the highest and statistically significant effect on compressibility index, tablet hardness, and dissolution rate. Statistical design helped in better understanding the effect of formulation factors on tablet characteristics important for designing formulations with desired characteristics.
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Chakraborty S, Shukla D, Mishra B, Singh S. Lipid – An emerging platform for oral delivery of drugs with poor bioavailability. Eur J Pharm Biopharm 2009; 73:1-15. [DOI: 10.1016/j.ejpb.2009.06.001] [Citation(s) in RCA: 227] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2009] [Revised: 05/30/2009] [Accepted: 06/02/2009] [Indexed: 01/15/2023]
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41
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He W, Fan LF, Du Q, Xiang B, Li CL, Bai M, Chang YZ, Cao DY. Design and in Vitro/in Vivo Evaluation of Multi-layer Film Coated Pellets for Omeprazole. Chem Pharm Bull (Tokyo) 2009; 57:122-8. [DOI: 10.1248/cpb.57.122] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Wei He
- Department of Pharmaceutics, School of Pharmaceutical Science, Hebei Medical University
- CSPC Pharmaceutical Technology Co., Ltd
| | - Li-Fang Fan
- Department of Pharmaceutical Analysis, School of Pharmaceutical Science, Hebei Medical University
- Hebei Yiling Pharmaceutical Group, Medicine Institute
| | - Qing Du
- Department of Pharmaceutics, School of Pharmaceutical Science, Hebei Medical University
| | - Bai Xiang
- Department of Pharmaceutics, School of Pharmaceutical Science, Hebei Medical University
| | | | - Min Bai
- CSPC Pharmaceutical Technology Co., Ltd
| | - Yong-Zhen Chang
- Department of Pharmaceutics, XingTai Medical School Facial Feature & Medical Treatment Technic Faculty, XingTai Medical College
| | - De-Ying Cao
- Department of Pharmaceutics, School of Pharmaceutical Science, Hebei Medical University
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Zhang X, Sun N, Wu B, Lu Y, Guan T, Wu W. Physical characterization of lansoprazole/PVP solid dispersion prepared by fluid-bed coating technique. POWDER TECHNOL 2008. [DOI: 10.1016/j.powtec.2007.07.011] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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43
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Ito Y, Venkatesan N, Hirako N, Sugioka N, Takada K. Effect of fiber length of carbon nanotubes on the absorption of erythropoietin from rat small intestine. Int J Pharm 2007; 337:357-60. [PMID: 17270373 DOI: 10.1016/j.ijpharm.2006.12.042] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2006] [Revised: 10/25/2006] [Accepted: 12/30/2006] [Indexed: 11/21/2022]
Abstract
Erythropoietin (EPO) loaded carbon nanotubes (CNTs) with surfactant as an absorption enhancer were prepared for the oral delivery of EPO using two types of CNTs, long and short fiber length CNTs, and the effect of CNT fiber length on the absorption efficiency of EPO was studied. After Labrasol, PEG-8 caprylic/capric glycerides, as absorption enhancer was adsorbed into long fiber CNTs of which mean fiber length was 20-80 microm, as a carrier, EPO and casein as protease inhibitor and Explotab (sodium starch glycolate) as a disintegrating agent, were mixed. The resulting solid preparation was administered into the rat jejunum and serum EPO levels were measured by ELISA. The dose of EPO, CNTs, casein and Explotab were 100 IU/kg, 5mg/kg, 25mg/kg and 2.5mg/kg, respectively. Serum EPO level reached to C(max), 69.0+/-3.9 mIU/ml, at 3.5+/-0.1h and AUC was 175.7+/-13.8 mIU h/ml. These values were approximately half of that obtained with short fiber length CNTs of which C(max) was 143.1+/-15.2 mIU/ml and AUC was 256.3+/-9.7 mIU h/ml. When amphoteric surfactant, Lipomin LA, sodium beta-alkylaminopropionic acid, was used to accelerate the disaggregation of long fiber length CNTs, C(max) was 36.0+/-4.9 and AUC was 96.9+/-11.9, which showed less bioavailability (BA) of EPO. These results suggest that the short fiber length CNTs deliver more both EPO and absorption enhancer to the absorptive cells of the rat small intestine and the aggregation of CNTs is not the critical factor for the oral delivery of EPO.
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Affiliation(s)
- Yukako Ito
- Department of Pharmacokinetics, Kyoto Pharmaceutical University, Kyoto 607-8414, Japan.
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Ito Y, Kusawake T, Prasad YVR, Sugioka N, Shibata N, Takada K. Preparation and evaluation of oral solid heparin using emulsifier and adsorbent for in vitro and in vivo studies. Int J Pharm 2006; 317:114-9. [PMID: 16631328 DOI: 10.1016/j.ijpharm.2006.02.056] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2005] [Revised: 02/22/2006] [Accepted: 02/24/2006] [Indexed: 11/16/2022]
Abstract
Oral anticoagulant therapy with heparin has been challenged by formulating heparin in oral solid preparation. As heparin, low molecular weight heparin (LMWH) was used. LMWH was dispersed with a surfactant used for the self-microemulsifying drug delivery system (SMEDDS), PEG-8 caprylic/capric glycerides (Labrasol), and the mixture was solidified with three kinds of adsorbents, microporous calcium silicate (Florite RE), magnesium alminometa silicate (Neusilin US(2)) and silicon dioxide (Sylysia 320). The in vitro release study showed that the T50%s were 3.2+/-0.1min for Sylysia 320, 4.6+/-0.2min for Florite RE, 13.7+/-0.1min for Neusilin US(2). The in vivo rat absorption study showed that Florite RE system had the highest C(max), 0.42+/-0.01IU/mL and AUC, 0.59+/-0.06IUh/mL, where plasma LMWH levels were measured as anti-Xa activity. Other preparations had the C(max) and AUC, 0.12+/-0.01IU/mL and 0.15+/-0.02IUh/mL for Neusilin US(2) and 0.25+/-0.02IU/mL and 0.40+/-0.03IUh/mL for Sylysia 320, respectively. The bioavailability (BA) of LMWH from the microporous calcium silicate preparation, Florite RE, was 18.8% in rats by comparing the AUC obtained after i.v. injection of LMWH, 40IU/kg to another group of rats. Florite RE system was evaluated in dogs after oral administration in an enteric capsule made of Eudragit S100 at the LMWH dose of 200IU/kg. High plasma anti-Xa activity levels were obtained, i.e., the C(max) was 0.48+/-0.11IU/mL and AUC was 1.64+/-0.32IUh/mL. These results suggest that adsorbent system is useful as an oral solid delivery system of poorly absorbable drugs such as LMWH.
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Affiliation(s)
- Yukako Ito
- Department of Pharmacokinetics, Kyoto Pharmaceutical University, Yamashina-ku, Kyoto 607-8414, Japan.
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Venkatesan N, Yoshimitsu J, Ohashi Y, Ito Y, Sugioka N, Shibata N, Takada K. Pharmacokinetic and pharmacodynamic studies following oral administration of erythropoietin mucoadhesive tablets to beagle dogs. Int J Pharm 2006; 310:46-52. [PMID: 16439074 DOI: 10.1016/j.ijpharm.2005.11.014] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2005] [Revised: 11/05/2005] [Accepted: 11/05/2005] [Indexed: 11/29/2022]
Abstract
Oral administration of mucoadhesive tablets containing erythropoietin (EPO) and an absorption enhancer Labrasol was studied in rats and dogs. Mucoadhesive tablets were prepared using Sylysia 550 holding the absorption enhancer and Carbopol 974P as a mucoadhesive agent. Mucoadhesive tablets were covered with a water-insoluble backing layer made of cellulose acetate and a pH-sensitive covering layer made of Eudragit L/Eudragit S. Tablet was administered into the rat jejunum at EPO dose of 100 IU/kg and serum samples were collected for 6h. Serum EPO level was analysed with a standard ELISA procedure. After administration, rats showed a maximum serum EPO level of C(max) 70.6 +/- 8.9 mIU/ml. Oral administration of a single tablet containing 100 IU/kg EPO to beagle dogs showed a C(max) of 24.6 +/- 4.1. When EPO dose was increased to 500 IU/kg and the number of tablets was also increased to 5, the C(max) was 54.8 +/- 9.0 mIU/ml. However, when EPO, 100 IU/kg dose was divided into five tablets, the C(max) was 15.5 +/- 1.8 mIU/ml. In the absence of absorption enhancer, the C(max) was 35.8 +/- 3.8 with 500 IU/kg dose distributed among five tablets. Pharmacodynamic studies were carried out following oral administration of mucoadhesive tablets for 6 consecutive days at an EPO dose of 500 IU/kg. Whole blood samples were collected and percent circulating reticulocytes were counted using Miller technique. The increase in percent circulating reticulocytes was found to be 1.7% on day 8 following oral administration. As a control study, EPO was administered by i.v. route at a dose of 300 IU/kg for 3 consecutive days and the percent circulating reticulocytes were counted. Mucoadhesive tablets showed promising results as an oral drug delivery system for protein therapeutics.
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Affiliation(s)
- N Venkatesan
- Department of Pharmacokinetics, Kyoto Pharmaceutical University, Misasagi, Kyoto 607 8414, Japan.
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Venkatesan N, Yoshimitsu J, Ito Y, Shibata N, Takada K. Liquid filled nanoparticles as a drug delivery tool for protein therapeutics. Biomaterials 2005; 26:7154-63. [PMID: 15967493 DOI: 10.1016/j.biomaterials.2005.05.012] [Citation(s) in RCA: 142] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2005] [Accepted: 05/06/2005] [Indexed: 11/24/2022]
Abstract
In the present study, an attempt was made to study the feasibility of nanoparticulate adsorbents in the presence of an absorption enhancer, as a drug delivery tool for the administration of erythropoietin (EPO) to the small intestine. Liquid filled nano- and micro-particles (LFNPS/LFMPS) were prepared using solid adsorbents such as porous silicon dioxide (Sylysia 550), carbon nanotubes (CNTs), carbon nanohorns, fullerene, charcoal and bamboo charcoal. Surfactants such as a saturated polyglycolysed C8-C18 glyceride (Gelucire 44/14), PEG-8 capryl/caprylic acid glycerides (Labrasol) and polyoxyethylene hydrogenated castor oil derivative (HCO-60) were used as an absorption enhancer at 50mg/kg along with casein/lactoferrin as enzyme inhibitors. The absorption of EPO was studied by measuring serum EPO levels by an ELISA method after small intestinal administration of EPO-LFNPS preparation to rats at the EPO dose level of 100 IU/kg. Among the adsorbents studied, CNTs showed the highest serum EPO level of 62.7 +/- 11.6 mIU/ml. In addition, with the use of casein, EPO absorption was improved, C(max) 143.1 +/- 15.2 mIU/ml. Labrasol showed the highest absorption enhancing effect after intra-jejunum administration than Gelucire 44/14 and HCO-60, 25.6 +/- 3.2 and 22.2 +/- 3.6 mIU/ml, respectively. Jejunum was found to be the best absorption site for the absorption of EPO from LFNPS. The use of CNTs as LFNPS, improved the bioavailability of EPO to 11.5% following intra-small intestinal administration.
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Affiliation(s)
- Natarajan Venkatesan
- Department of Pharmacokinetics, Kyoto Pharmaceutical University, Misasagi, Yamashina-ku, Japan.
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Sharma S, Sher P, Badve S, Pawar AP. Adsorption of meloxicam on porous calcium silicate: characterization and tablet formulation. AAPS PharmSciTech 2005; 6:E618-25. [PMID: 16408863 PMCID: PMC2750609 DOI: 10.1208/pt060476] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
The purpose of the present study was characterization of microparticles obtained by adsorption of poorly water soluble drug, meloxicam, on a porous silicate carrier Florite RE (FLR) and development of a tablet formulation using these microparticles, with improved drug dissolution properties. The study also reveals the use of FLR as a pharmaceutical excipient. Meloxicam was adsorbed on the FLR in 2 proportions (1:1 and 1:3), by fast evaporation of solvent from drug solution containing dispersed FLR. Drug adsorbed FLR microparticles were evaluated for surface topography, thermal analysis, X-ray diffraction properties, infrared spectrum, residual solvent, micromeritic properties, drug content, solubility, and dissolution studies. Microparticles showed bulk density in the range of 0.10 to 0.12 g/cm(3). Dissolution of drug from microparticles containing 1:3, drug:FLR ratio was faster than microparticles containing 1:1, drug:FLR ratio. These microparticles were used for formulating directly compressible tablets. Prepared tablets were compared with a commercial tablet. All the prepared tablets showed acceptable mechanical properties. Disintegration time of prepared tablets was in the range of 18 to 38 seconds, and drug dissolution was much faster in both acidic and basic medium from prepared tablets as compared with commercial tablet. The results suggest that FLR provides a large surface area for drug adsorption and also that a reduction in crystallinity of drug occurs. Increase in surface area and reduction in drug crystallinity result in improved drug dissolution from microparticles.
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Affiliation(s)
- Sameer Sharma
- Department of Pharmaceutics, Bharati Vidyapeeth Deemed University, Poona College of Pharmacy, Erandawane, 411038 Pune, Maharashtra State India
| | - Praveen Sher
- Department of Pharmaceutics, Bharati Vidyapeeth Deemed University, Poona College of Pharmacy, Erandawane, 411038 Pune, Maharashtra State India
| | - Shraddha Badve
- Department of Pharmaceutics, Bharati Vidyapeeth Deemed University, Poona College of Pharmacy, Erandawane, 411038 Pune, Maharashtra State India
| | - Atmaram P. Pawar
- Department of Pharmaceutics, Bharati Vidyapeeth Deemed University, Poona College of Pharmacy, Erandawane, 411038 Pune, Maharashtra State India
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