Patent · US Expired

System for dispensing pharmaceutically active compounds

US6250300A · kind A · utility

55Cited by

18References

8Claims

0Family size

Assignee

AB Astra · SE

Inventors

Jan Andersson · Erlangen, DE
Hans Jagfaldt · Lund, SE
Eva Trofast · Lund, SE
Kjell I. L. Wetterlin · Södra Sandby, SE

Key dates

Filing date	Oct 14, 1999
Grant date	Jun 26, 2001
Priority date	—
Expiry date	Oct 14, 2019

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61K31/58
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

A system for dispensing a clinically effective dose of an inhalable, pharmaceutically active compound, which system includes a dry powder inhaler device containing a powder containing the pharmaceutically active compound, wherein PA1 (a) of the powder particles dispensed by the inhaler device (the "metered DPI dose"), at least 40% are less than about 10 microns in diameter at the point the particles exit the inhaler, PA1 (b) the metered DPI dose is sufficient to produce a clinically effective result in a patient; and PA1 (c) the amount of the compound in the metered DPI dose is not more than 70% of the minimal amount of the compound which, when dispensed in a pressurized metered dose inhaler, produces an equivalent clinically effective result in the same patient.

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