Geraldo, Have to agree with Steve, after a few years on Sinemet only, and getting increasingly shorter periods of on time once put on entacapone (also called Comtan, Comtess, and one of the combination of drugs in Stalevo) things got better and I regained some time. This is not unusual. Entacapaone gets more levodopa to the brain, and because it hangs around longer in your system you also get an increase in 'on' time.