Tailoring hybrid organic-inorganic film forming topical gel: A tuneable approach for Tramadol HCl delivery

Abstract

ABSTRACT Drug release properties for transdermal route can be better modified as per requirement which is mostly dependent upon the carrier system. In case of organic film-forming systems, the physical properties may not be achieved for successful delivery of drug through transdermal route. A novel organic-inorganic hybrid film-forming gel may fulfil these expectations to many extend. The present study focuses on the development of the organic-inorganic hybrid film-forming gel. A smooth, transparent, clear film-forming gel of tramadol was prepared for application on the intact skin with better comfort and modified drug release rate properties. The key properties of the adhesive films produced from the hybrid gels were investigated and the results showed that the incorporation of appropriate PVA: TEOS: Glycerine: HCl in the ratio of 46:12.5:25.5:6 respectively. Resultant hybrid film-forming gel has modified the physical properties and improved drug release properties. Furthermore, the investigations of skin irritation suggested no irritation to skin after topical application. This study has provided an alternative to the presently available organic gel and films for transdermal delivery of drugs with better patient compliance and modified physical and chemical stability.