Azelastine embonate and compositions which contain it

US5232919A · kind A · utility

Assignee

• ASTA Pharma Aktiengesellschaft · DE

Inventors

• Gerhard Scheffler · Bielefeld, DE
• Dieter Sauerbier · Altentreptow, DE
• Jurgen Engel · Alzenau, DE

Key dates

• Filing date: Oct 15, 1990
• Grant date: Aug 3, 1993
• Expiry date: Oct 15, 2010

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D403/04
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

An embonic acid salt of azelastine is disclosed which does not possess the bitter taste of azelastine, and which therefore is suitable for orally administered formulations.