I guess I'm one of the lucky ones. I had a crazy high libido before going on it and it's never tapered off since taking it and no other side effects. Been on it for... 20 years now I think. In fact, I was just commenting to a friend that it seems like my libido should have tapered some by now simply due to age. I guess I'm glad it hasn't, but at the same time, my dating life has been next to nil since I moved to NH so I would almost welcome a little tapering off at this point.