Crystalline forms of atorvastatin and hydrates thereof are useful hypolipidemic and hypocholesterolemic agents....http://www.google.es/patents/US5969156?utm_source=gb-gplus-sharePatente US5969156 - Crystalline [R- (R*,R*)]-2-(4-Dfluorophenyl)-.beta.,.delta.-dihydroxy-5-(1-methylethyl)- 3-phenyl-4-[(phenylamino)carbonyl]-1H-pyrrole-1-heptanoic acid hemi calcium salt (atorvastatin)
