Patent · US Expired

Active-substance preparation for oral administration, especially to ruminants

US5279832A · kind A · utility

24Cited by

16References

35Claims

0Family size

Assignee

Degussa AG · DE

Inventors

Dieter Greissinger · Florstadt, DE
Heidermarie Kniesel · Blankenbach, DE
Winfried Heimbeck · Alzenau, DE
Herbert Tanner

Key dates

Filing date	Jan 15, 1992
Grant date	Jan 18, 1994
Priority date	—
Expiry date	Jan 15, 2012

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61P3/00
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

A dosage form for administering physiologically active substances to animals, especially ruminant animals. The dosage unit includes a core which contains the active substance and a coating. The coating has selected areas which are thinner than the average thickness of the coating and/or areas which are predetermined rupture sites. These thin areas or predetermined rupture sites are constructed and arranged so as to detach and/or rupture under the conditions which are present after oral administration of the dosage form. As a result, the delayed release of the physiologically-active substance is accelerated. For example, the coating may be formulated to not be affected in the first stomach of a ruminant but to rapidly disintegrate in the animal's second stomach.

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