pretreatment with noradrenergic blocking agents ( propranolol , phentolamine and phenoxybenzamine ) did not diminish the suppressant effect of d-amphetamine , but this effect was reduced by pretreatment with alpha-methyl-para-tyrosine methylester and dopamine blockers ( spiroperidol , haloperidol and clozapine ) indicating that d-amphetamine was exerting its selective suppressant effect via the release of dopamine .
C0002658
amphetamine
C0011812
d-amphetamine