From Biology-Online Dictionary | Biology-Online Dictionary


(Science: chemical) A potent direct-acting peripheral vasodilator that reduces peripheral resistance and produces a fall in blood pressure. It is given by mouth in the treatment of severe hypertension unresponsive to other therapy. It is also used topically in the treatment of male-pattern baldness.

Pharmacological action: antihypertensive agents, vasodilator agents.

Chemical name: 2,4-Pyrimidinediamine, 6-(1-piperidinyl)-, 3-oxide