Remedies for brain circulatory disturbances

摘要

Remedies for brain circulatory disturbances containing (+)-N,N'-propylenedinicotinamide or its pharmaceutically acceptable salt as the active ingredient. (+)-N,N'-Propylenedinicotinamide or its pharmaceutically acceptable salt is superior in usefulness and safety to conventionally known (+/-)-N,N-propylenedinicotinamide (nicaraven).