both yohimbine pretreatment and cns monoamine depletion ( with reserpine 5 mg/kg i.p . and alpha-methyl-p-tyrosine 2 x 300 mg/kg i.p . ) prevented the mydriatic and ciliary nerve activity lowering effects of i.c.v . amphetamine .
C0724441
pretreatment
C0035179
reserpine