Patent · US Expired

Dry power inhaler excipient, process for its preparation and pharmaceutical compositions containing it

US7090870B1 · kind B1 · utility

2Cited by

9References

17Claims

0Family size

Inventors

Francis Vanderbist · Sint-Genesius-Rode, BE
Philippe Baudier · Waterloo, BE
Paul Maes · Grimbergen, BE

Key dates

Filing date	May 7, 1998
Grant date	Aug 15, 2006
Priority date	—
Expiry date	May 7, 2018

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61K47/26
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

A pharmaceutical excipient useful in the formulation of dry powder inhaler compositions comprising a particulate roller-dried anhydrous β-lactose, said β-lactose particles having a size between 50 and 250 micrometers and a rugosity between 1.9 and 2.4, and the so formulated pharmaceutical compositions.

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