Dextrofemine

Dextrofemine, sold under the brand names Marsyl and Dysmalgine, is a uterine spasmolytic and muscle relaxant of the amphetamine family. It is the dextrorotatory enantiomer of racefemine. The drug acts as a β-adrenergic receptor agonist and sympathomimetic. It was marketed in France in 1966 but appears to no longer be marketed. Other tocolytics with similar chemical structures as phenethylamines or amphetamines include bedoradrine, buphenine, fenoterol, hexoprenaline, isoxsuprine, ritodrine, and terbutaline.