Hi Sheila I take Madopar 10 x 62.5 mg which is Levadopa and Ropinirole 6 mg x 1 slow release I understand it Sinimet is also Levadopa.
I have not had any issues with the two of them in fact I asked to come of the patch to go on to Ropinirole because the stupid patch caused me itchy skin all the time.
Hope this helps.
BB xx