in the pithed normotensive rat the effect of the calcium entry blocker nifedipine was studied on alpha 1-adrenoreceptor-mediated pressor responses of intravenously administered ( - ) -noradrenaline , dopamine and ( - ) -adrenaline as well as of ( - ) -noradrenaline released from sympathetic neurones by dmpp , tyramine , mcn-a-343 and electrical stimulation of the spinal cord at the level th5-l4 .
C0014563
adrenaline
C0028351
noradrenaline