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- 저자 : Suthar Disha (검색결과 2 건)
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Gandhi Jeet,Suthar Disha,Patel Hetal,Shelat Pragna,Parejiya Punit 경희대학교 융합한의과학연구소 2021 Oriental Pharmacy and Experimental Medicine Vol.21 No.3
A widespread of superficial fungal infections deals with concerns related to current therapeutic regimen such as drug resistance and adverse events associated with the same which leads exploration of natural oils as an antifungal agent. The aim of present work is to the development of clove oil loaded microemulsion based gel for treatment of superficial fungal infections. The microemulsion based gel was prepared by phase titration method and optimized using D-optimal design considering globule size, drug permeation and drug retention on skin as critical quality attributes. The MIC and zone of inhibition of clove oil was found to be 2.2 mg/ml and 38 mm respectively. A pale to yellowish transparent microemulsion had a globule size, zeta-potential and PDI of 14.41 nm, 0.73 and 0.0113 respectively indicating a stable microemulsion. A clove oil loaded microemulsion based gel (CLMBG) with a pH of 6.27 and viscosity of 12.87 m.pas/sec exhibited a comparable texture profile to marketed preparation. The drug release of the CLMBG with a drug content of 102.6 ± 4% in acetate buffer pH 5.5 was 98.5 ± 0.35% ensuring complete drug release from the formulation. Ex-vivo drug permeation study and skin irritation study dictated the retention of drug at site of action and the formulation to be non-irritant. The antifungal study proved the formulation to have similar efficacy as the marketed product (clobet gel). The stability study indicated the product to be safe, efficacious and stable formulation. From the above results, it can be derived that clove oil loaded microemulsion based gel can be a promising alternative to current antifungal regimens.
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Dharmik M. Mehta,Punit B. Parejiya,Hetal K. Patel,Palak J. Trivedi,Disha D. Suthar,Pragna K. Shelat 한국약제학회 2016 Journal of Pharmaceutical Investigation Vol.46 No.5
Present study attempts to overcome pH-dependent solubility, a limitation for oral delivery of poorly soluble BCS class-II drugs. A pH independent, patient compliant, dual working gastroretentive drug delivery system of model drug quetiapine fumarate (QF) was fabricated by unique combination approach of mucoadhesion and floating. Bilayer tablets comprising floating adhesive layer (FL) and matrix layer (ML) was systematically optimized by applying 32 full factorial experimental designs. Selected variables for FL: Polyox 303WSR (X1FL) and alginate beads (X2FL), and for ML: HPMC K100M (X1ML) and fumaric acid (X2ML) were studied against responses for FL: floating lag time (R1FL), total floating time (R2FL) and adhesion force (R3FL) and for ML: percentage drug released at 2 h—Q2h (R1ML), 8 h—Q8h (R2ML), and 18 h—Q18h (R3ML), respectively. Optimized batch (OP) showed floating lag time (6.5 h), total floating time (14 h), adhesion force (0.82 N) and Q18h ([90 %). Pharmacokinetic study of OP and immediate release market product demonstrated improved bioavailability (*12 % higher AUC0–?) of OP. In a nutshell, developed drug delivery system can be fabricated as a platform for QF and similar BCS class-II drugs with pH dependent solubility.
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