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

Novel pharmaceutical compositions containing hydrophobic practically water-insoluble drugs adsorbed on pharmaceutical excipients as carrier; process for their preparation and the use of said compositions

Patent 4721709 Issued on January 26, 1988. Estimated Expiration Date: Icon_subject January 26, 2005. 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.

Inventors

Application

No. 06/893106 filed on 08/04/1984

US Classes:

514/221Bicyclo ring system having the seven-membered hetero ring as one of the cyclos

Examiners

Primary: Friedman, Stanley J.

Attorney, Agent or Firm

International Classes

A61K 9/14 (20060101)
A61K 47/48 (20060101)
A61K 31/55 (20060101)

Foreign Application Priority Data

1984-07-26 CH

Abstract

Pharmaceutical compositions are disclosed which contain hydrophobic practically water-insoluble drugs adsorbed onto carriers such as starch and/or microcrystalline cellulose. The rate of dissolution and absorption in the body is improved due to the very fine particle size of the drug adsorbed onto the carriers. The drug particles have a mean size of less than 10 microns the size distribution of particles being such that at least 95% of particles are smaller than 15 microns. A process for the preparation of drug-carrier adsorbates and their incorporation in pharmaceutical compositions is also disclosed. The use of such compositions to treat mammals is also disclosed.

Other References

  • Merck Index, 9th Ed. (1976), p. 898
  • Chem. Abst. 99-27931K (1983); 99-110596A (1983) and 100-1978175 (1984)
  • Tulakhar et al; J. Pharm. Pharmacol, 1983, 35:269-274
  • Sandersen et al., J. Pharm. Pharmacol, 1984, 36 789-795
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