“In general it was found that the neuroleptic drugs in ….10 mg/kg; perphenazine, 0.05 mg/kg; trifluperazine , 0.15 mg/kg; spiramide, 0.05 mg/… mg/kg produced complete inhibition of the amphetamine activities , whereas much higher doses of aceperone, 20 … mg/kg only produced partial antagonism.”