Your dad's Mirapex experience and the onset of the shaky voice has got me to thinking about when my mother's voice started to sound shaky -- I'm trying to see whether it coincided with her taking Permax (another agonist). I'm not able to pinpoint it, though. I do know that about a year prior to her diagnosis, I noticed a change in her voice, but I'd describe it as more of a slur; I though she sounded tired. When my mother does get off Permax completely, I will listen for the shakiness. What I'd really like to hear is her voice off Permax but back on Paxil -- but I'd don't think she'll let me. Good luck with your father. Debbie White [log in to unmask]