Aerosol suspension formulations with TG 227 ea or TG 134 a as propellant

US8518377B2 · kind B2 · utility

Assignee

• BOEHRINGER INGELHEIM PHARMA GMBH & CO. KG · DE

Inventors

• Hubert Hoelz · Oberheimbach, DE
• Mariola Mann · Bingen, DE
• Christel Schmelzer · Ingelheim am Rhein, DE
• Friedrich Schmidt · Minto, CA
• Hans-Hermann Weil · Gau-Bickelheim, DE

Key dates

• Filing date: Apr 4, 2007
• Grant date: Aug 27, 2013
• Expiry date: Aug 18, 2028

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61P11/00
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

The invention relates to pressurized gas formulations for dosage aerosols, in which a medicament is formulated suspended in TG 227 ea (1,1,1,2,3,3,3-heptafluoropropane) and/or TG 134 a (1,1,1,2-tetrafluoroethane) as a propellant, and to their use for producing a medicament. The aerosol is preferably an inhalation aerosol.