POLYMORPHS OF CLOPIDOGREL HYDROCHLORIDE AND THEIR USE AS ANTITHROMBIC COMPOUNDS

摘要

The invention relates to crystalline forms I and II methyl-S- +-2-chlorophenyl-2-6,7-dihydro-4H-thieno[3,2.c]pyridine-5-yl-acetate hydrochloride of the Formula I and hydrates thereof, a process for the preparation thereof and pharmaceutical compositions containing the same. The new polymorphs according to the invention exhibit blood platelet aggregation inhibiting and antithrombotic effect.