I was diagnosed 9 1/2 years ago - symptoms 2-3 years before. Am 53. I took Requip from the beginning and now Requip XL 12 mg daily. I like the Requip XL once a day vs Requip every 3 hours. I tended to have some 'yawn time' 20-30 minutes after taking Requip. I don't feel that as much with Requip XL.
I don't know about Requip and Sinemet/Stalevo/Levadopa <-- haven't done it.
I think yekkimo/Ed's advise is good. I'm all about appropriate timing of meds and food ... can make a dif. Am also a HUGE proponent of RIGOROUS exercise for people with Parkinson's <-- may be neuro-protective.
Glen, to answer your question ... it can take several weeks to titrate up/down to the level of Requip that is appropriate for you. Then takes a couple+ weeks on that dosage to determine whether is most beneficial. I'd try to be patient. What are the alternatives?!? I do commend your doc for starting you on a dopamine agonist such as requip.
Life is a dance. Don't sit it out. ---- Jackson H. Brown