The first occurred after Waterford Crystal, the mount of Ireland’s Cian O'Connor, tested positive for Zuclopenthixol (clopixol), Fluphenazine, Guanabenz and Reserpine.
Alseroxylon is a purified fat-soluble extract of the root of Rauvolfia serpentina, containing reserpine and other nonadrenolytic amorphous alkaloids.