Patent · US Expired

Dry powder for inhalation

US7186401B2 · kind B2 · utility

28Cited by

2References

28Claims

0Family size

Assignee

JAGOTEC AG · CH

Inventors

Manfred Keller · Munich, DE
Rudi Müller-Walz · Schopfheim, DE

Key dates

Filing date	Jul 28, 2003
Grant date	Mar 6, 2007
Priority date	—
Expiry date	Jul 28, 2023

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61K47/12
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

The aim of the invention is to improve the moisture resistance of dry powder formulations for inhalation which contain a pharmaceutically ineffective carrier of not-inhalable particle size and a finely divided pharmaceutically active compound of inhalable particle size and to also improve the storage stability of said formulations. To this end, magnesium stearate is used in said formulations. One of the features of the inventive dry powder is that a high fine particle dosage or fine particle fraction can be maintained also under relatively extreme temperature and humidity conditions.

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