I'm 38 and have experienced radiation induced menopause due to cancer. I had a hellacious time with hot flashes and my oncologist prescribed me effexor to try for depression but did say that it has been known to help with hot flashes. I wasn't on it long enough to say whether it helped with the flashes or not......Sorry but i'm still having hot flashes (it's been over a year) and have read alot on trying to battle them. I have read that eliminating caffeine and alcohol helps some, vitamin e, many herbs, soy, and the list goes on and on. I did a google.Com search on menopause, hot flashes, etc. And just started reading.
By the way, I was on hormones but since I already had cancer and was relatively young (i figured i'd be exposed to them for too long) I decided they weren't for me but women have had success with that as well. I also was enraged to find out that they make the premarin from pregnant mare's urine and treat the animals horribly. This also affected my decision to quit taking them.
I didn't mean to ramble - just wanted to put my two cents in that yes I have heard that effexor has been recognized to help some with hot flashes. I guess it just depends if you will be one of the lucky ones that it helps. Good luck!!!
Barbrac