“ MDMA (1 and 5 mg kg(-1)) produced pressor responses which were significantly … by the alpha(1)-adrenoceptor antagonist prazosin (0.1 mg kg(-1)), yohimbine (1 mg kg(-1)) or methiothepin (0.1 mg kg(-1)), but … by the 5-HT2 receptor antagonist ritanserin (1 mg kg(-1)).”