“In general it was found that the … doses, haloperidol, 0.10 mg/kg; perphenazine , 0.05 mg/kg; trifluperazine, 0.15 mg/kg; spiramide, … pimozide, 0.15 mg/kg produced complete inhibition of the amphetamine activities , whereas much higher doses of aceperone, 20 … mg/kg only produced partial antagonism.”