I take Effexor and am on 375 mg of it. I like it. I had some start up side effects that were a bit unpleasant, but they went away - about the only one I have left, is it raises my body temp, so I'm almost always hot.
I do think it also helped me get through menopause symptom free - it's prescribed at low doses for helping some women with menopause, so it could very well help with pms.
Good luck with it.
splitimage
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"I danced in the morning when the world was begun. I danced in the moon and the stars and the sun". From my favourite hymn.
"If you see the wonder in a fairy tale, you can take the future even if you fail." Abba