You're using a free limited version of DrugPatentWatch: Upgrade for Complete Access

Last Updated: July 21, 2024

Details for Patent: 4,863,742


✉ Email this page to a colleague

« Back to Dashboard


Summary for Patent: 4,863,742
Title: Controlled absorption pharmaceutical composition
Abstract:A controlled absorption verapamil containing pellet formulation for oral adminstration comprises a core of a powder mixture containing verapamil or a pharmaceutically acceptable salt thereof and an organic acid and a polymeric material, said core comprising layers of said powder mixture and said polymeric material superimposed one upon the other and said polymeric material being present in an amount effective to ensure that all of said powder mixture is coated into said core and a multi-layer membrane surrounding said core, the number of layers in said membrane and the ratio of the various polymers comprising the membrane being effective to permit release of the verapamil from the pellet at a rate allowing controlled absorption thereof over a 24 hour period following oral administration, said rate being measured in vivo and having a Tmax between 6 and 16 hours.
Inventor(s): Panoz; Donald E. (Tuckerstown, BM), Geoghegan; Edward J. (Westmeath, IE)
Assignee: Elan Corporation PLC (Athlone, IE)
Application Number:07/064,765
Patent Claim Types:
see list of patent claims
Formulation; Dosage form; Composition; Process; Use;

Drugs Protected by US Patent 4,863,742

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

Foreign Priority and PCT Information for Patent: 4,863,742

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Ireland1661/86Jun 20, 1986

International Family Members for US Patent 4,863,742

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria 72975 ⤷  Sign Up
Australia 599385 ⤷  Sign Up
Australia 7452887 ⤷  Sign Up
Germany 3776982 ⤷  Sign Up
European Patent Office 0250267 ⤷  Sign Up
Spain 2039440 ⤷  Sign Up
>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. 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.