Sue, it was pointed out that the patch is not Sinimet, but a dopamine agonist. In the United States, I have heard that Sinimet is called the gold standard of parkinson's medication. I have also seen other medications that I believe are the same substance with a different trade name. There are many folks on this list who are much better informed on medications than I, and of course, your neurologist should be the last word. (I will catch some flack about that statement, I am sure, so stay tuned....!) Ken B.