I'm still able to orgasm (on 200mg), but it's very difficult, only through masturbation, takes much longer (I give up at the two hour point), and I basically ahve no desire for sex and very rarely get turned on at all. Through masturbation, it's more of a physical reaction than an emotional reaction. The orgasms are usually barely worth the time and effort for me. I hope things are better for you. I am also on 150mg Wellbutrin, and have never had sexual side effects from it.