Valproate (Sodium Valproate) does have widespread metabolic effects, and may have dose-related side-effects. If you are coming off it, you need to be weaned off it, not stop suddenly.

Pregnancy and BFing are cautions. There are quite a few nasty possible side-effects listed in my BMF, but it can cause irregular periods and amonorrhoea (no periods), however there was nothing mentioned about male fertility. My BMF is a couple of years old so they may have found out some more since then. Good luck with it.

Ryn.