Clonidine
"I'm 52 & last October hot flashes started, about 14 daily (worse at night). Desperate for relief GP prescribed Clonidine warning they cause headaches. I'm prone to h/aches, 2-3 weekly and also suffer with migraine. Took for 2 wks & flushes stopped completely AND no headaches! However, after only 2 months the hot flashes returned & I was getting migraines. GP advised I stop but must do so gradually. When I did OMG, migraines were debilitating so be warned! Don't understand why pills stopped working for me, I was on cloud 9 with these, had got my life back! Felt terrific for those 2 months, so frustrating!"