TRANSDERMAL DELIVERY FORMULATIONS

Abstract

Provided are transdermal delivery formulations, and methods for the manufacture thereof, for the epicutaneous administration of therapeutic agents, drugs, and nutrients to human subjects; veterinary animals; domesticated or undomesticated animals, plants or insects; or agricultural animals, plants, or insects. Transdermal delivery formulations disclosed herein comprise a homogenous mixture of (a) a transdermal accelerant comprising a weak organic acid having a pKa greater than 2.0 and (b) a microemulsion comprising a nonionic emulsifier, water, and a cis-unsaturated long-chain fatty acid. Fatty acid microemulsions are combined with the acidified transdermal accelerants having a pH greater than 1.0 (typically from 1.5 to 2.5) to yield a homogenous transdermal delivery formulation comprising fatty acid micelles and/or liposomes that encapsulate one or more compound, such as a nutrient or a drug, and incorporate one or more cis-unsaturated fatty acid having a 12 to 26 carbon chain that includes one or more double bond in a cis configuration. Transdermal delivery formulations exhibit ideal solubility and absorption properties in high humidity conditions, such as in a warm to hot shower or sauna.

CPC Classifications