间歇期防治海得琴和双氢麦角胺近20年来经数千人试里.在预防偏头痛上证明有效,曾报告前者显效率为78.6%,后者为73%。①海得琴:一次30滴,一日三次,餐前15～30分钟服;或1片(2mg),早晚各服一次,历时2～3个月。它有明显的抗交感神经.降血压及中枢镇静作用,故适用于年龄较大、血压偏高或升高的人,尤其适用于绝经期偏头 Intermittent prophylaxis of piperoid and dihydroergotamine Thousands of people have been tested for migraine in the past two decades and have shown to be effective in preventing migraines. The former reported a markedly effective rate of 78.6% and the latter 73%. ① Sea Derqin: a drop of 30 times, three times a day, 15 to 30 minutes before serving meals; or 1 (2mg), sooner or later each serving, which lasted 2 to 3 months. It has obvious anti-sympathetic .Have lower blood pressure and central sedation, it is suitable for older, high blood pressure or elevated people, especially for menopause