 Alpha-2 Agonists: Xylazine, Clonidine Catapres, Dixarit, Guanfacine Tenex, Guanabenz Wytensin, Mivazerol, Guanadrel Hylorel, Guanethidine Ismelin and Methyldopa Aldomet. Xylazine is a veterinary product, but has abuse potentIal in humans. 