Hi all, I spoke recently with a TIAA/CREF retirement planning consultant at my workplace whose brother was diagnosed with MS about two years ago. He is taking the current standard medication for MS (the name of which I unfortunately don't remember). This came up when I told the consultant that I had Parkinson's. I asked how badly off his brother was with MS. He responded that he was still mobile, and that the most difficult thing was a psychological side-effect of the medication. "He can't behave maturely," he said of his 35-year-old brother. "He's totally changed, like he's reverted emotionally to adolescence. He's become a girl-chaser." This caught my attention because I, a 49-year-old married PWP, started having "crushes" on female co-workers and other female acquaintances not long after beginning my course of medications for PD 2.5 years ago. I take Sinemet CR and Requip. So could there be a connection? I've been reluctant to note this as a potential side-effect with my neurologist, and don't know if it is. I'm also a midlife male, with that whole can of worms attached. Before I start sounding like a talk-show guest, let me just ask if anyone, male or female, has any experience with, I guess, libido increase as a "side-effect" of Parkinson's medication. Rick