1-(3-Halo-2-pyridinyl)piperazine and its acid addition salts are selective .alpha..sub.2 -adrenergic receptor antagonists and thereby useful as antidepressant agents and for treating sedation caused by antihypertensive therapy.
1-(3-卤代-2-
吡啶基)
哌嗪及其酸加成盐是选择性α2-
肾上腺素能受体拮抗剂,因此可用作抗抑郁剂和治疗抗高血压治疗引起的镇静剂。