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Akhtar M, Zaman M, Siddiqi AZ, Ali H, Khan R, Alvi MN, Butt MH, El-Demerdash FM, Binjawhar DN, Sayed AA, Altyar AE, Abdel-Daim MM. Response Surface Methodology (RSM) approach to formulate and optimize the bilayer combination tablet of Tamsulosin and Finasteride. Saudi Pharm J 2024; 32:101957. [PMID: 38313822 PMCID: PMC10837631 DOI: 10.1016/j.jsps.2024.101957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Accepted: 01/11/2024] [Indexed: 02/06/2024] Open
Abstract
An orally administered bilayer tablet with Tamsulosin (TAM) as the sustained release (SR) and Finasteride (FIN) as immediate release (IR) was manufactured. A response surface methodology was employed to formulate bilayer tablets with individual release layers, i.e., sustained and immediate release (SR and IR). Independent variables selected in both cases comprise hydroxypropyl methylcellulose (HPMC) as SR polymer, and avicel PH102 in the inner layer while Triacetin and talc in the outer layer, respectively. Tablets were prepared by direct compression, a total of 11 formulations were prepared for inner layer TAM, and 9 formulations for outer layer FIN were designed; these formulations were evaluated for hardness, friability, thickness, %drug content, and %drug release. A central composite design was employed in response surface methodology to design and optimize the formulation. The percentage of drug released was evaluated by in-vitro USP dissolution method of optimized formulation for 0.5, 2, and 6 hrs, and results were 24.63, 52.96, and 97.68 %, respectively. Drug release data was plotted in various kinetic models using a D.D solver, where drug release was first order that is concentration dependent and was best explained by Korsmeyer-Peppa kinetics, as the highest linearity was observed (R2 = 0.9693). However, a very close relationship was also noted with Higuchi kinetics (R2 = 0.9358). The mechanism of drug release was determined through the Korsmeyer model, and exponent "n" was found to be 0.4, indicative of an anomalous diffusion mechanism or diffusion coupled with erosion.
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Affiliation(s)
- Muneeba Akhtar
- Faculty of Pharmaceutical Sciences, University of Central Punjab, Lahore, Pakistan
| | - Muhammad Zaman
- Faculty of Pharmaceutical Sciences, University of Central Punjab, Lahore, Pakistan
| | | | - Hasan Ali
- Highnoon Laboratories Limited, Lahore, Pakistan
| | - Rahima Khan
- Faculty of Pharmaceutical Sciences, University of Central Punjab, Lahore, Pakistan
| | - Muhammad Nadeem Alvi
- Faculty of Pharmaceutical Sciences, University of Central Punjab, Lahore, Pakistan
| | - Muhammad Hammad Butt
- Department of Medicinal Chemistry, Faculty of Pharmacy, Uppsala University, 75123 Uppsala, Sweden
| | - Fatma M. El-Demerdash
- Department of Environmental Studies, Institute of Graduate Studies and Research, Alexandria University, Alexandria, Egypt
| | - Dalal Nasser Binjawhar
- Department of Chemistry, College of Science, Princess Nourah bint Abdulrahman University, P.O.Box 84428, Riyadh 11671, Saudi Arabia
| | - Amany A. Sayed
- Zoology Department, Faculty of Science, Cairo University, Giza 12613, Egypt
| | - Ahmed E. Altyar
- Department of Pharmacy Practice, Faculty of Pharmacy, King Abdulaziz University, P.O. Box 80260, Jeddah 21589, Saudi Arabia
- Pharmacy Program, Batterjee Medical College, P.O. Box 6231, Jeddah 21442, Saudi Arabia
| | - Mohamed M. Abdel-Daim
- Department of Pharmaceutical Sciences, Pharmacy Program, Batterjee Medical College, P.O. Box 6231, Jeddah 21442, Saudi Arabia
- Pharmacology Department, Faculty of Veterinary Medicine, Suez Canal University, Ismailia 41522, Egypt
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Versatile functionalization of pectic conjugate: From design to biomedical applications. Carbohydr Polym 2023; 306:120605. [PMID: 36746571 DOI: 10.1016/j.carbpol.2023.120605] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 12/26/2022] [Accepted: 01/16/2023] [Indexed: 01/22/2023]
Abstract
Pectin exists extensively in nature and has attracted much attention in biological applications for its unique chemical and physical characteristics. Functionalized pectin, especially pectic conjugates, has given many possibilities for pectin to improve its properties and bioactivity as well as to deliver active molecules. To better exploit this strategy of pectic functionalization, this review presents in detail the structural modifications of pectin, different synthetic methods, and design strategies of pectic conjugates involving both traditional chemical and "green" approaches. Here, the research ideas and applications of pectic prodrugs as well as the development of preparation based on pectic conjugates are reviewed, with emphasis on crosslinking systems of functionalized pectin and nanosystems based on self-assembly techniques. We hope this review will provide comprehensive and valuable information for the functionalization and systematization of the pectic conjugate from synthesis to application.
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Handa M, Kumar K, Garabadu D, Kushawaha PK, Shukla R. Bilayer fixed-dose combination tablet for curcumin microparticles and piroxicam and i n vitro evaluation. Ther Deliv 2023; 13:463-476. [PMID: 36748662 DOI: 10.4155/tde-2022-0043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Aim: In the present work, fixed-dose combination of bilayer tablets for piroxicam as and curcumin as immediate-release and sustained-release layer (SRL) respectively for management of inflammatory response. Materials & methods: The SRL include Curcumin polycaprolactone microparticles from spray drying. The tablet layers include Pearlitol 200SD, Microcrystalline cellulose PH101, Aerosil 200, talc each layer. Results: SEM studies confirm spherical microparticles. PXRD and DSC studies confirm the amorphous microparticles. In vitro studies exhibit, an immediate release and sustained release for Piroxicam and Curcumin after 2 h. Cellular uptake studies on RAW 264.7 cells confirm the complete internalization of microparticles. Conclusion: Therefore, it was concluded that microparticles can be formulated into a unit dosage form for the management of inflammation.
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Affiliation(s)
- Mayank Handa
- Department of Pharmaceutics, National Institute of Pharmaceutical Education & Research-Raebareli, Lucknow, UP, 226002, India
| | - Kamlesh Kumar
- Department of Pharmaceutics, National Institute of Pharmaceutical Education & Research-Raebareli, Lucknow, UP, 226002, India
| | - Debapriya Garabadu
- Department of Pharmacology, School of Health Sciences, Central University of Punjab, Bathinda
| | - Pramod Kumar Kushawaha
- Department of Microbiology, School of Basic Sciences, Central University of Punjab, VPO Ghudda, Bathinda, Punjab, 151401, India
| | - Rahul Shukla
- Department of Pharmaceutics, National Institute of Pharmaceutical Education & Research-Raebareli, Lucknow, UP, 226002, India
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Ishkhanyan H, Ziolek RM, Barlow DJ, Lawrence MJ, Poghosyan AH, Lorenz CD. NSAID solubilisation promotes morphological transitions in Triton X-114 surfactant micelles. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Jin G, Ngo HV, Wang J, Cui JH, Cao QR, Park C, Jung M, Lee BJ. Design and evaluation of in vivo bioavailability in beagle dogs of bilayer tablet consisting of immediate release nanosuspension and sustained release layers of rebamipide. Int J Pharm 2022; 619:121718. [PMID: 35381311 DOI: 10.1016/j.ijpharm.2022.121718] [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: 12/08/2021] [Revised: 03/29/2022] [Accepted: 03/31/2022] [Indexed: 10/18/2022]
Abstract
The purpose of this study was to develop a once-daily, bilayer matrix tablet with immediate (IR) and sustained release (SR) layers of poorly water-soluble and absorption site dependent rebamipide (RBM) to substitute three times a day IR tablet. Owing to the pH-dependent poor water solubility of RBM in low pH condition, salt-caged nanosuspensions (NSPs) consisting of RBM and poloxamer 407 (POX 407) or poloxamer 188 (POX 188) were prepared using an acid-base neutralization method to increase the dissolution rate, which was subsequently applied to the immediate-release (IR) layer. Polyethylene oxide (PEO) with different molecular weights (PEO 100,000 and PEO 5,000,000) and hydroxypropyl methylcellulose 4000 (HPMC 4000) were then investigated as SR agents to incorporate into the SR layer with pure RBM via wet granulation method. The dissolution profile of the optimized bilayer tablet having 50% IR and 50% SR layer of 300 mg RBM showed that the IR layer could rapidly disintegrate in pH 1.2 buffer solution within 2 h, reaching 50% of drug release from the tablet, followed by an extended drug release from the SR layer in pH 6.8 buffer over 24 h. An in vivo pharmacokinetic study was carried out in beagle dogs to compare the optimal formulation (300 mg RBM bilayer tablet) and the commercial tablet (Mucosta® 100 mg) as a reference. Unexpectedly, despite enhanced dissolution rate in a controlled manner, a designed bilayer tablet had no dose- and dosage form dependent in vivo bioavailability in beagle dogs as compared with IR 100 mg RBM reference tablet. It was evident that solubility in low pH condition, gastric residence time and absorption site of RBM should be carefully considered for designing specific SR or gastroretentive dosage form to improve therapeutic outcomes.
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Affiliation(s)
- Gang Jin
- College of Pharmacy, Ajou University, Suwon 16499, Republic of Korea; School of Chemical and Pharmaceutical Engineering, Jilin Institute of Chemical Technology, Jilin 132022, PR China.
| | - Hai V Ngo
- College of Pharmacy, Ajou University, Suwon 16499, Republic of Korea.
| | - Jie Wang
- Student Affairs Department, Jilin Institute of Chemical Technology, Jilin 132022, PR China.
| | - Jing-Hao Cui
- College of Pharmaceutical Science, Soochow University, Suzhou 215123, PR China.
| | - Qing-Ri Cao
- College of Pharmaceutical Science, Soochow University, Suzhou 215123, PR China.
| | - Chulhun Park
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, Alberta T6G 2H7, Canada.
| | - Minji Jung
- College of Pharmacy, Ajou University, Suwon 16499, Republic of Korea; School of Pharmacy, University of California, San Francisco, CA, United States.
| | - Beom-Jin Lee
- College of Pharmacy, Ajou University, Suwon 16499, Republic of Korea; Institute of Pharmaceutical Science and Technology, Ajou University, Suwon 16499, Republic of Korea.
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Development and characterization of bilayered tablets of diazepam for oral drug delivery: design, optimization and in vitro evaluation. Ther Deliv 2022; 13:221-231. [PMID: 35306880 DOI: 10.4155/tde-2021-0077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Aims: The oral bioavailability of drugs can be limited by their short residence time in the gastrointestinal tract. This study was performed to design bilayered floating tablets of diazepam comprising immediate-release and controlled-release layers. Methods: The tablets were prepared using sodium starch glycolate, polyvinyl pyrrolidone, hydroxypropyl methylcellulose and microcrystalline cellulose and evaluated for their characteristics. Results: The optimized formulation was found to be buoyant for 8 h on simulated gastric fluid. Hydroxypropyl methylcellulose K4M and microcrystalline cellulose sustained the release of diazepam from the controlled-release layer. The optimized formulation exhibited an extended release period of 8 h. Discussion/conclusion: It can be concluded that bilayered tablets of diazepam may extend the residence time of the drug at the site of absorption.
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Mzoughi J, Vandamme T, Luchnikov V. Biphasic Drug Release from Rolled-Up Gelatin Capsules with a Cylindrical Cavity. Pharmaceutics 2021; 13:pharmaceutics13122040. [PMID: 34959322 PMCID: PMC8709024 DOI: 10.3390/pharmaceutics13122040] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 11/21/2021] [Accepted: 11/26/2021] [Indexed: 11/30/2022] Open
Abstract
Biphasic drug delivery systems are used for quick release of a specific amount of drug for immediate amelioration of a patient’s state, followed by sustained release, to avoid repeated administration. This type of delivery is often necessary for pain management and the treatment of many pathologies, such as migraines, hypertension, and insomnia. In this work, we propose a novel architecture of a biphasic release media that does not need the rapidly disintegrating layer and that allows for easily setting the sustained release rate. A drug-containing capsule is made by rolling up a thermally crosslinked gelatin strip on which drug reservoirs are formed by casting. The quick-release reservoir (QRR) is placed at the strip’s extremity, from which the rolling starts, while the sustained-release reservoir (SRR) is formed in the middle part of the strip. The strip is rolled around a cylinder that is a few millimeters wide, which is removed after rolling. The roll is stabilized by transglutaminase-catalyzed crosslinking of the consecutive shells. A biphasic release is successfully demonstrated with the use of model fluorescent drugs for single-dye and double-dye systems in phosphate-buffered saline (PBS) solution with pH = 7.4. In vitro, the drug from the QRR, placed at the walls of the cavity of the roll, is released immediately upon the capsule’s contact with the PBS solution. The drug from the SRR, embedded between the roll’s layers, diffuses steadily, with the lag time defined by the radial position of the reservoir.
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Affiliation(s)
- Jihane Mzoughi
- Institut de Science des Matériaux de Mulhouse, CNRS, UMR 7361, Université de Haute-Alsace, F-68100 Mulhouse, France;
| | - Thierry Vandamme
- INSERM, Regenerative Nanomedicine UMR 1260, Centre de Recherche en Biomédecine de Strasbourg (CRBS), Université de Strasbourg, F-67000 Strasbourg, France;
| | - Valeriy Luchnikov
- Institut de Science des Matériaux de Mulhouse, CNRS, UMR 7361, Université de Haute-Alsace, F-68100 Mulhouse, France;
- Correspondence: ; Tel.: +33(0)3-89-60-87-10
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Tewabe A, Abate A, Tamrie M, Seyfu A, Abdela Siraj E. Targeted Drug Delivery - From Magic Bullet to Nanomedicine: Principles, Challenges, and Future Perspectives. J Multidiscip Healthc 2021; 14:1711-1724. [PMID: 34267523 PMCID: PMC8275483 DOI: 10.2147/jmdh.s313968] [Citation(s) in RCA: 71] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Accepted: 06/08/2021] [Indexed: 12/02/2022] Open
Abstract
Nanomedicine is an advanced version of Paul Ehrlich's "magic bullet" concept. Targeted drug delivery is a system of specifying the drug moiety directly into its targeted body area (organ, cellular, and subcellular level of specific tissue) to overcome the aspecific toxic effect of conventional drug delivery, thereby reducing the amount of drug required for therapeutic efficacy. To achieve this objective, the magic bullet concept was developed and pushed scientists to investigate for more than a century, leading to the envisioning of different nanometer-sized devices - today's nanomedicine. Different carrier systems are being used and investigated, which include colloidal (vesicular and multiparticulate) carriers, polymers, and cellular/subcellular systems. This review addresses the need for and advantages of targeting, with its basic principles, strategies, and carrier systems. Recent advances, challenges, and future perspectives are also highlighted.
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Affiliation(s)
- Ashagrachew Tewabe
- Department of Pharmacy, College of Medicine and Health Sciences, Bahir Dar University, Bahir Dar, Ethiopia
| | - Atlaw Abate
- Ethiopian Food and Drug Authority (EFDA), Federal Ministry of Health (FMoH), Addis Ababa, Ethiopia
| | - Manaye Tamrie
- Department of Pharmaceutics and Social Pharmacy, School of Pharmacy, College of Health Sciences, Mizan-Tepi University, Mizan-Aman, Ethiopia
| | - Abyou Seyfu
- Department of Pharmaceutics and Social Pharmacy, School of Pharmacy, College of Health Sciences, Mizan-Tepi University, Mizan-Aman, Ethiopia
| | - Ebrahim Abdela Siraj
- Department of Pharmacy, College of Medicine and Health Sciences, Bahir Dar University, Bahir Dar, Ethiopia
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