I'm on 1050 mg/day of depakote and take 1/4 mg risperdal occaisonially. The only time I lost my sex drive was when I cycled into my winter depression. I still was having sex, just my gf and I were alone all day in my new house and I made every excuse I could think of not to have sex, which was completely opposite of my normal, hump anything thats a human female mentality.
But as soon as the days started getting longer and the sun was out more, I cycled back up into my spring cheer and was back on the horse in no time.