A composition for transdermal administration resulting from an admixture includes: a therapeutically effective amount of a pharmaceutically active agent that includes a corresponding steroid and a steroid derivative; and a carrier for the pharmaceutically active agent. The steroid and the corresponding...http://www.google.com.au/patents/US20030152614?utm_source=gb-gplus-sharePatent US20030152614 - Enhanced drug delivery in transdermal systems
