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Last Updated: December 15, 2025

Claims for Patent: 4,863,970

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Summary for Patent: 4,863,970

Title:	Penetration enhancement with binary system of oleic acid, oleins, and oleyl alcohol with lower alcohols
Abstract:	Penetration-enhancing pharmaceutical compositions for topical transepidermal and percutaneous application are disclosed which are non-irritating to the skin. These compositions are made up of a safe and effective amount of an active pharmaceutical permeant, including hydrophilic salt forms, contained in a novel penetration-enhancing vehicle comprising, (i) 1-95% w. of a cell-envelope disordering compound selected from the group consisting of oleic acid, oleyl alcohol, glycerol monoleate, glycerol dioleate, glycerol trioleate and mixtures thereof, (ii) 5-75% w., and preferably 5-49% w., of a lower alkanol selected from the group consisting of ethanol, propanol and isopropanol and mixtures thereof and (iii) 0-45% w., and preferably 1-45% w., of an inert diluent which, according to properties of the permeant used, may range from hydrophilic to hydrophobic. Water, polyethylene or polypropylene glycols and mineral oil are exemplary diluents.
Inventor(s):	Dinesh C. Patel, Yunik Chang
Assignee:	Actavis Laboratories UT Inc
Application Number:	US07/218,702
Patent Claims:

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