Patent · US Active

Pharmaceutical aerosol formulations for pressurized metered dose inhalers comprising a sequestering agent

US8877164B2 · kind B2 · utility

0Cited by

3References

15Claims

0Family size

Assignee

Chiesi Farmaceutici S.p.A. · IT

Inventors

David Lewis · Carmel, US
Brian Meakin · Bath, GB
Maurizio Delcanale · Parma, IT
Fausto Pivetti · Parma, IT

Key dates

Filing date	Feb 24, 2006
Grant date	Nov 4, 2014
Priority date	—
Expiry date	Dec 17, 2028

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61P25/02
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

Aerosol solution formulation for use in an aerosol inhaler which includes at least one active ingredient selected from 20-ketosteroids and quinolinone derivatives, a propellant containing a hydrofluoroalkane, a cosolvent, and a specific amount of a sequestering agent that stabilizes the formulation. By way of example, the stabilizing agent may be phosphoric acid or sulphuric acid.

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