U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Sustained release formulation containing captopril and method

Patent 5433951 Issued on July 18, 1995. Estimated Expiration Date: Icon_subject October 13, 2013. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

Ajuvants for rectal delivery of drug substances
Patent #: 4464363
Issued on: 08/07/1984
Inventor: Higuchi ,   et al.

Orally administerable sustained release pharmaceutical formulations
Patent #: 4797286
Issued on: 01/10/1989
Inventor: Thakkar ,   et al.

Pharmaceutical capsules containing panetidine
Patent #: 5028432
Issued on: 07/02/1991
Inventor: Chopra, et al.

Directly compressible granules having improved flow properties Patent #: 5169645
Issued on: 12/08/1992
Inventor: Shukla, et al.

Inventors

Assignee

Application

No. 136436 filed on 10/13/1993

US Classes:

424/486, Synthetic polymer424/468, Sustained or differential release type424/502Contains waxes, higher fatty acids, higher fatty alcohols

Examiners

Primary: Page, Thurman K.
Assistant: Kulkosky, Peter F.

Attorney, Agent or Firm

International Class

A61K 009/22

Abstract

A sustained release captopril formulation is provided which is in the form of a capsule containing captopril in a semi-solid matrix of at least one fatty acid glyceride and/or polyethylene glycol ester. A method of preparing such a formulation is also provided.

Other References

  • C. Doelker et al, "The Incorporation and In Vitro Release Profiles of Liquid, Deliquescent or Unstable Drugs with Fusible Excipients in Hard Gelatin Capsules", Drug Dev. Ind. Pharm., 12(10, 1553-1565 (1986)
  • J. R. Howard et al, "Drug Release from Thermosoftening Fatty Vehicles Filled into Hard Gelatin Capsules", Drug Dev. Ind. Pharm., 13(6) 1031-1045 (1987)
  • D. Bidah et al "Kinetics of in vitro release of sodium salicylate dispersed in Gelucire", Int. J. Pharm., 58, 215-220 (1990)
  • A. B. Dennis et al, "In vivo evaluation of rapid release and sustained release Gelucire capsule formulations", Int. J. Pharm., 65, 85-100 (1990)
  • C. Brossard et al, "Modelling of Theophylline Compounds Release from Hard Gelatin Capsules Containing Gelucire Matrix Granules", Drug Dev. Ind. Pharm., 17(10) 1267-1277 (1991)
  • V. Ratsimbazafy et al, "Les Gelucire et al ralentissement de la liberation des principes actifs", S.T.P. Pharma Prat., 1(4), 335-349 (1991
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