A vasodilator (trade name Loniten) used to treat severe hypertension,one side effect is hirsutism so it is also sold (trade name Rogaine) as a treatment for male-patterned baldness.

• 用来治疗严重高血压的血管扩张神经药物（商标是Loniten），此药物的副作用是多毛症，因此也被作为治疗秃头（商标是Rogaine）。