TRANSDERMAL DELIVERY SYSTEM

摘要

A transdermal delivery system comprising a composition comprising a physiologically active agent and a penetration enhancer wherein the penetration enhancer comprises a combination of (i) an ester of salicylic acid, preferably selected from the C6 to C30 aliphatic ester of salicylic acid and (ii) polyethylene glycol (PEG) of average molecular weight no more than 300.