<unk>  or disoprominum, usually as the hydrochloride salt, is a synthetic spasmolytic which neutralizes spastic conditions of the biliary tract and of the sphincter of Oddi. It was discovered at Janssen Pharmaceutica in 1955.
Diisopromine
Dihydroergocryptine
Theobromine
Cyclobenzaprine
Clofoctol
Dihydroergotamine 
Hymecromone
Iopromide