REMEDY FOR ERECTION FAILURE COMPRISING FUSED PYRIDAZINE COMPOUND

摘要

A remedy for erection failure containing as the active ingredient a fused pyridazine compound represented by general formula (I) or a pharmacologically acceptable salts thereof, wherein ring C represents an aromatic five- or six-membered ring which may bear heteroatom(s); n represents an integer of 1 to 4; R<1> represents hydrogen, halogeno, cyano, etc.; A represents hydrogen, halogeno, optionally substituted amino, etc.; X represents -N= etc.; and Y represents -CO-, optionally substituted amino, etc.