Patent · US Expired

Inhalation pharmaceuticals

US5260306A · kind A · utility

185Cited by

5References

18Claims

0Family size

Assignee

Fisons plc · GB

Inventors

Terence D. Boardman · Palo Alto, US
Raymond B. Forrester · Rastatt, DE

Key dates

Filing date	Jul 2, 1991
Grant date	Nov 9, 1993
Priority date	—
Expiry date	Jul 2, 2011

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61K31/47
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

There is described finely divided nedocromil sodium, comprising a therapeutically effective proportion of individual particles capable of penetrating deep into the lung, characterized in that a bulk of the particles which is both unaggolomerated and unmixed with a coarse carrier, is sufficiently free flowing to be filled into capsules on an automatic filling machine and to empty from an opened capsule in an inhalation device. There is also described a method of making the fine particles and pharmaceutical formulations containing them.

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