| abstract |
Clinically highly useful drugs having an antagonism to serotonin, in particular, centralnmuscle relaxing drugs for treating, ameliorating or preventing spastic paralysis ornameliorating myotonia and comprising fused pyridine derivatives represented by generalnformula (I), pharmacologically acceptable salts thereof or hydrates of either (I) or (1),nwherein the ring A represents a benzene, pyridine, thiophene or furan ring; and B representsn(2). |