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Picco CJ, Anjani QK, Donnelly RF, Larrañeta E. An isocratic RP-HPLC-UV method for simultaneous quantification of tizanidine and lidocaine: application to in vitro release studies of a subcutaneous implant. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024; 16:979-989. [PMID: 38165785 DOI: 10.1039/d3ay01833d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2024]
Abstract
Implantable devices have been widely investigated to improve the treatment of multiple diseases. Even with low drug loadings, these devices can achieve effective delivery and increase patient compliance by minimizing potential side effects, consequently enhancing the quality of life of the patients. Moreover, multi-drug products are emerging in the pharmaceutical field, capable of treating more than one ailment concurrently. Therefore, a simple analytical method is essential for detecting and quantifying different analytes used in formulation development and evaluation. Here, we present, for the first time, an isocratic method for tizanidine hydrochloride (TZ) and lidocaine (LD) loaded into a subcutaneous implant, utilizing reversed-phase high-performance liquid chromatography (RP-HPLC) coupled with a UV detector. These implants have the potential to treat muscular spasticity while providing pain relief for several days after implantation. Chromatographic separation of the two drugs was accomplished using a C18 column, with a mobile phase consisting of 0.1% TFA in water and MeOH in a 58 : 42 ratio, flowing at 0.7 ml min-1. The method exhibited specificity and robustness, providing accurate and precise results. It displayed linearity within the range of 0.79 to 100 μg ml-1, with an R2 value of 1 for the simultaneous analysis of TZ and LD. The developed method demonstrated selectivity, offering limits of detection and quantification of 0.16 and 0.49 μg ml-1 for TZ, and 0.30 and 0.93 μg ml-1 for LD, respectively. Furthermore, the solution containing both TZ and LD proved stable under various storage conditions. While this study applied the method to assess an implant device, it has broader applicability for analysing and quantifying the in vitro drug release of TZ and LD from diverse dosage forms in preclinical settings.
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Affiliation(s)
- Camila J Picco
- School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK.
| | - Qonita Kurnia Anjani
- School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK.
| | - Ryan F Donnelly
- School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK.
| | - Eneko Larrañeta
- School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK.
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Akhlaq M, Azad AK, Fuloria S, Meenakshi DU, Raza S, Safdar M, Nawaz A, Subramaniyan V, Sekar M, Sathasivam KV, Wu YS, Miret MM, Fuloria NK. Fabrication of Tizanidine Loaded Patches Using Flaxseed Oil and Coriander Oil as a Penetration Enhancer for Transdermal Delivery. Polymers (Basel) 2021; 13:4217. [PMID: 34883720 PMCID: PMC8659784 DOI: 10.3390/polym13234217] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Revised: 11/20/2021] [Accepted: 11/26/2021] [Indexed: 11/30/2022] Open
Abstract
Transdermal drug delivery is important to maintain plasma drug concentrations for therapeutic efficacy. The current study reports the design, formulation, and evaluation of tizanidine transdermal patches formulated using chitosan and thiolated chitosan, ethyl cellulose (EC), polyvinylpyrrolidone (PVP), and Eudragit RL100 in different ratios. The tizanidine patches were formulated using flaxseed oil and coriander oil in the concentrations of 1% v/w, 2% v/w, 3% v/w, 4% v/w, 5% v/w, and 10% v/w. The patches were subjected to characterization of physicochemical property (thickness, weight uniformity, drug content, efficiency, percentage moisture uptake/loss), in vitro drug release and drug permeation, skin irritation, in vivo application, pharmacokinetics analysis, and stability studies. The results indicate that the interaction of thiolated chitosan with the negative charges of the skin opens the tight junctions of the skin, whereas flaxseed and coriander oils change the conformational domain of the skin. The novelty of this study is in the use of flaxseed and coriander oils as skin permeation enhancers for the formulation of tizanidine transdermal patches. The formulations follow non-Fickian drug release kinetics. The FTZNE23, FTZNE36 and FTZNE54, with 5% v/w flaxseed oil loaded formulations, exhibited higher flux through rabbit skin compared with FTZNE30, FTZNE35, FTZNE42, and FTZNE47, formulations loaded with 10% v/w coriander oil. The study concludes that flaxseed oil is a better choice for formulating tizanidine patches, offering optimal plasma concentration and therapeutic efficacy, and recommends the use of flaxseed and coriander oil based patches as a novel transdermal delivery system for tizanidine and related classes of drugs.
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Affiliation(s)
- Muhammad Akhlaq
- Department of Pharmaceutics, Faculty of Pharmacy, Gomal University, Dera Ismail khan 29050, Pakistan; (M.A.); (S.R.); (M.S.); (A.N.)
| | - Abul Kalam Azad
- Faculty of Pharmacy, AIMST University, Bedong 08100, Malaysia
| | - Shivkanya Fuloria
- Faculty of Pharmacy, AIMST University, Bedong 08100, Malaysia
- Centre of Excellence for Biomaterials Engineering, AIMST University, Bedong 08100, Malaysia;
| | | | - Sajid Raza
- Department of Pharmaceutics, Faculty of Pharmacy, Gomal University, Dera Ismail khan 29050, Pakistan; (M.A.); (S.R.); (M.S.); (A.N.)
| | - Muhammad Safdar
- Department of Pharmaceutics, Faculty of Pharmacy, Gomal University, Dera Ismail khan 29050, Pakistan; (M.A.); (S.R.); (M.S.); (A.N.)
| | - Asif Nawaz
- Department of Pharmaceutics, Faculty of Pharmacy, Gomal University, Dera Ismail khan 29050, Pakistan; (M.A.); (S.R.); (M.S.); (A.N.)
| | - Vetriselvan Subramaniyan
- Faculty of Medicine, Bioscience and Nursing, MAHSA University, Jalan SP 2, Bandar Saujana Putra, Jenjarom Selangor, Shah Alam 42610, Malaysia;
| | - Mahendran Sekar
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy and Health Sciences, Universiti Kuala Lumpur Royal College of Medicine Perak, Ipoh 30450, Malaysia;
| | - Kathiresan V. Sathasivam
- Centre of Excellence for Biomaterials Engineering, AIMST University, Bedong 08100, Malaysia;
- Faculty of Applied Science, AIMST University, Bedong 08100, Malaysia
| | - Yuan Seng Wu
- Centre for Virus and Vaccine Research & Department of Biological Sciences, School of Medical and Life Sciences, Sunway University, Petaling Jaya 47500, Malaysia;
| | - Mireia Mallandrich Miret
- Department of Pharmacy, Pharmaceutical Technology and Physical-Chemistry, Faculty of Pharmacy and Sciences Food, University of Barcelona, 08028 Barcelona, Spain;
| | - Neeraj Kumar Fuloria
- Faculty of Pharmacy, AIMST University, Bedong 08100, Malaysia
- Centre of Excellence for Biomaterials Engineering, AIMST University, Bedong 08100, Malaysia;
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Hanif M, Shah S, Rasool N, Abbas G, Saadullah M, Khan SM, Ahmed MM, Abbas N, Ashfaq M, Iqbal O. Sodium alginate and pectin estimation in raft forming pharmaceuticals by high performance liquid chromatography method. ACTA CHROMATOGR 2021. [DOI: 10.1556/1326.2020.00765] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
AbstractThe high performance liquid chromatographic (HPLC) method was developed for the combined estimation of sodium alginate and pectin in raft forming pharmaceuticals on C18 column ZORBAX ODS (1.5 cm × 4.6 mm, 5 μm) with UV detection at 378 nm. The assay condition comprised of phosphate buffer pH 7.4 and methanol 60:40% v/v at a flow rate of 1.25 mL/min. The separation of sodium alginate and pectin with good resolution and a retention time less than 8 min was attained. The method was linear over a range of 200–800 μg/mL of sodium alginate and pectin. The regression values obtained from linearity curve of sodium alginate and pectin were 0.9993 and 0.9991, respectively. The retention time of sodium alginate and pectin was 3.931 and 7.470 min, respectively. The percent recovery of sodium alginate and pectin ranged from 94.2–98.5% and 92.1–98.4% respectively. The limit of detection (LOD) and limit of quantification (LOQ) of sodium alginate were found to be 2.443 and 3.129 μg/mL and the LOD and LOQ of pectin were 3.126 and 3.785 μg/mL, respectively. The resolution of sodium alginate and pectin was found in the range of 1.03–1.89 and 1.10–1.91, respectively. This method has been successfully applied to analyze the concentrations of sodium alginate and pectin in raft forming drug delivery systems.
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Affiliation(s)
- Muhammad Hanif
- 1Faculty of Pharmacy, Bahauddin Zakariya University Multan, Multan, Pakistan
| | - Shahid Shah
- 2Department of Pharmacy Practice, Faculty of Pharmaceutical Sciences Government College University Faisalabad, Faisalabad, Pakistan
| | - Nasir Rasool
- 3Department of Chemistry Government College University Faisalabad, Faisalabad, Pakistan
| | - Ghulam Abbas
- 4Department of Pharmaceutics, Faculty of Pharmaceutical Sciences Government College University Faisalabad, Faisalabad, Pakistan
| | - Malik Saadullah
- 5Department of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences Government College University Faisalabad, Faisalabad, Pakistan
| | - Sajid Mehmood Khan
- 6Faculty of Pharmacy and Alternative Medicines, The Islamia University Bahawalpur, Bahawalpur, Pakistan
| | | | - Nazar Abbas
- 4Department of Pharmaceutics, Faculty of Pharmaceutical Sciences Government College University Faisalabad, Faisalabad, Pakistan
| | - Mehran Ashfaq
- 4Department of Pharmaceutics, Faculty of Pharmaceutical Sciences Government College University Faisalabad, Faisalabad, Pakistan
| | - Omeira Iqbal
- 4Department of Pharmaceutics, Faculty of Pharmaceutical Sciences Government College University Faisalabad, Faisalabad, Pakistan
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