For the men who don't like to admit that they have stage fright at the best of times. Feel lucky that you don't have the sexual Dysfunction co-related with anti-convulsants. I don't know how fertile my sperm is??? To be honest, for me it's a more then a little embarrassing to walk into a sperm bank, even though that is exactly what they do for a living (who knows why?) Ihave a lot of difficulties in ALL my relationships, because I don't have as high of a libido then a regular male. I know some of you on Tegretol (Carbamazepine) Vimpat (lacosamide) and others can cause this problem! I don't think that Levetiracetam (aka. Keppra) is a bad, but don't quote me on that because I am on it, lol.