Spasmolytically active (+)S-enantiomer of secoverine.

摘要

The invention concerns spasmolytically active pharmaceutical compositions, and the preparation thereof, containing (+) S-1-cyclohexyl-4-[ethyl-(p-methoxy- alpha -methylphenethyl)amino]-1-butanone or a salt thereof as the active component. It has been found that this (+) S-enantiomer is about twice as active as the racemate (which is known as secoverine). This better activity is not related with a proportional increase of undesired side-effects.