Patent · US Expired

Orally administered solvent-free pharmaceutical preparation with delayed active-substance release, and a method of preparing the preparation

US5453283A · kind A · utility

21Cited by

3References

13Claims

0Family size

Assignee

Schwarz Pharma Ltd. · DE

Inventors

Ulrich Munch
Hans-Jurgen Mika · Bonn, DE
Bernhard Emschermann
Rainer Schmidt · Bergkirchen, DE
Bernhard Sczepanik

Key dates

Filing date	Apr 7, 1993
Grant date	Sep 26, 1995
Priority date	—
Expiry date	Apr 7, 2013

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61P9/10
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

Delayed release pharmaceutical preparations include a solvent free, solidified melt granulate of a pharmaceutical ingredient in admixture with a meltable auxiliary substance which is soluble in the pharmaceutical ingredient at elevated temperatures.

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