Last Updated: June 25, 2026

Details for Patent: 5,601,839

Name: Drug Patent Intelligence for US Patent 5601839
Creator: DrugPatentWatch
License: https://www.drugpatentwatch.com/terms.php

✉ Email this page to a colleague

« Back to Dashboard

Summary for Patent: 5,601,839

Title:	Triacetin as a penetration enhancer for transdermal delivery of a basic drug
Abstract:	A composition and method for enhancing transdermal penetration of a basic drug are described. The composition comprises a matrix patch comprising an effective amount of a basic drug, preferably having a pKa of about 8.0 or greater, an effective amount of penetration enhancer consisting essentially of triacetin, and a polymer later preferably comprising a pressure-sensitive adhesive. A preferred basic drug is oxybutynin and acid addition salts thereof. The method for enhancing transdermal penetration comprises applying the matrix patch to a selected area of skin.
Inventor(s):	Danyi Quan, Ninad A. Deshpanday, Srinivasan Venkateshwaran, Charles D. Ebert
Assignee:	Allergan Sales LLC
Application Number:	US08/429,757
Patent Claim Types: see list of patent claims	Use; Composition;

Drugs Protected by US Patent 5,601,839

Glossary

Subscribe to access the full database, or Start Trial
Applicant	Tradename	Generic Name	Dosage	NDA	Approval Date	TE	Type	RLD	RS	Patent No.	Patent Expiration	Product	Substance	Delist Req.	Patented / Exclusive Use	Submissiondate
>Applicant	>Tradename	>Generic Name	>Dosage	>NDA	>Approval Date	>TE	>Type	>RLD	>RS	>Patent No.	>Patent Expiration	>Product	>Substance	>Delist Req.	>Patented / Exclusive Use	>Submissiondate

International Family Members for US Patent 5,601,839

Subscribe to access the full database, or Start Trial
Country	Patent Number	Estimated Expiration	Supplementary Protection Certificate	SPC Country	SPC Expiration
European Patent Office	0871420	⤷ Start Trial	CA 2005 00010	Denmark	⤷ Start Trial
European Patent Office	0871420	⤷ Start Trial	05C0008	France	⤷ Start Trial
Argentina	001721	⤷ Start Trial
>Country	>Patent Number	>Estimated Expiration	>Supplementary Protection Certificate	>SPC Country	>SPC Expiration

Make Better Decisions: Try a trial or see plans & pricing

Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. We do not provide individual investment advice. This service is not registered with any financial regulatory agency. The information we publish is educational only and based on our opinions plus our models. By using DrugPatentWatch you acknowledge that we do not provide personalized recommendations or advice. thinkBiotech performs no independent verification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.