title: Effect of permeation enhancers in the mucoadhesive buccal patches of salbutamol sulphate for unidirectional buccal drug delivery.
abstract: The purpose of this work was to study the effect of various permeation enhancers on the permeation of salbutamol sulphate (SS) buccal patches through buccal mucosa in order to improve the bioavailability by avoiding the first pass metabolism in the liver and possibly in the gut wall and also achieve a better therapeutic effect. The influence of various permeation enhancers, such as dimethyl sulfoxide (DMSO), linoleic acid (LA), isopropyl myristate (IPM) and oleic acid (OA) on the buccal absorption of SS from buccal patches containing different polymeric combinations such as hydroxypropyl methyl cellulose (HPMC), carbopol, polyvinyl alcohol (PVA), polyvinyl pyrollidone (PVP), sodium carboxymethyl cellulose (NaCMC), acid and water soluble chitosan (CHAS and CHWS) and Eudragit-L100 (EU-L100) was investigated. OA was the most efficient permeation enhancer increasing the flux greater than 8-fold compared with patches without permeation enhancer in HPMC based buccal patches when PEG-400 was used as the plasticizer. LA also exhibited a better permeation enhancing effect of over 4-fold in PVA and HPMC based buccal patches. In PVA based patches, both OA and LA were almost equally effective in improving the SS permeation irrespective of the plasticizer used. DMSO was more effective as a permeation enhancer in HPMC based patches when PG was the plasticizer. IPM showed maximum permeation enhancement of greater than 2-fold when PG was the plasticizer in HPMC based buccal patches.
authors: Department of Pharmaceutics, Gautham College of Pharmacy, Sultanpalya, Bangalore, 560 032, India.
authors: V V
authors: VV
authors: Prasanth
authors: Department of Pharmaceutical Technology, Anna University, BIT Campus, Tiruchirapalli, Tiruchirapalli 620 024, India.
authors: A
authors: A
authors: Puratchikody
authors: Regulatory affairs and Medical writing, Biocon Pvt Ltd, Bangalore 560 100, India.
authors: S T
authors: ST
authors: Mathew
authors: Centre for post graduate studies, Asian Metropolitan University, Batu 9, Cheras, Selangor 43200, Malaysia.
authors: K B
authors: KB
authors: Ashok
keywords: Enhancement ratio; Permeability coefficient; Permeation enhancer; Salbutamol sulphate; Steady state flux
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