Venlafaxine
"I had a hysterectomy over 25 years ago and was on HRs since then.  However, I am on medicare and they don't easily cover HR prescriptions for women over 65.  I quit taking them last summer and since have suffered with hot flashes, night sweats...waking up every 2 hours drenched with sweat.  I went back to my doctor to ask about getting back on HRs and she suggested that I try Effexor 37.5mg for a month to see if it would help.  Well, the first couple of weeks my hot flashes disappeared.  But as my body adjusted to the medication, the hot flashes started coming back.  I now have 2 or 3 during the day and sometimes 1 at night but I find that is tolerable.  My doctor said she could up the dosage if I wanted but I said no, I was fine with it."