I was on the Cabergoline clinical trial for four years......trial ended for me on August 14, 1997, when I was switched to Mirapex.........had to do five days without either drug. I was told that Cabergoline will not be marketed for Parkinson's Disease in the US. Pharmacia developed cabergoline, Upjohn developed Mirapex. Pharmacia was purchased by Upjohn during the past four years. I was pleased with the Cabergoline while I was taking it, I did notice improvement after I started the drug.......definitely a return of "spunk" as my family described changes. I was reluctant to give up the cabergoline for Mirapex, (why change a drug that is working??????) but little choice (the cabergoline would not be accessible for me). Today..........8 weeks later.........I would not go back to the cabergoline from the Mirapex. Seems to my husband and myself that arrhythmias, swallowing difficulty and some fine motor skill loss was perhaps linked to the cabergoline as a side effect????????? These annoyances have all but disappeared for a time.....no proof of this theory.............but strong indication that this might be the possibility. Rita Weeks Lincoln, NE