Patent · US Expired

Cyclodextrin-drospirenone inclusion complexes

US6610670B2 · kind B2 · utility

60Cited by

8References

34Claims

0Family size

Assignee

SCHERING CORPORATION · US

Inventors

Thomas Backensfeld · Berlin, DE
Wolfgang Heil · Berlin, DE

Key dates

Filing date	Dec 20, 2001
Grant date	Aug 26, 2003
Priority date	—
Expiry date	Dec 20, 2021

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08B37/0015
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

Described are inclusion complexes formed between cyclodextrin and drospirenone. In a specific embodiment of the invention, the cyclodextrin is &bgr;-cyclodextrin. The invention further relates to methods of providing such an inclusion complex, and to the use of said inclusion complex for improving the solubility of drospirenone, for providing pharmaceutical compositions, for use as a medicament in the treatment of symptoms associated with menopause and in female contraception.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.