Dicycloverine, also known as dicyclomine, is an anticholinergic that blocks muscarinic receptors. Dicycloverine was first synthesized in the United States circa 1947. Dicyclomine can cause a range of anticholinergic side effects such as dry mouth, nausea, and, at higher doses, deliriant effects. Recreational use of this drug for its anticholinergic effects has been rarely reported.