“Other CNS agents (atypical neuroleptics, GABA antagonists, baclofen, some 5-HT1 agonists) also induced elevation of [3H]Ro 15-1788 binding in vivo, as did drugs exerting vasodilatatory effects (papaverine, nimodipine , verapamil, prazosin, N6-cyclohexyladenosine).”