Almost six years on treatment now, my PD drugs are very effective for me.It's easier to move and my mouvements are faster.I feel less stiffness.I tolerate it well.I have very few side effects.
I, too, take carbidopa-levadopa --1 tablet 4 times a day. I was a mess before I was diagnosed -- I could not button my coat, write a neat sentence in script, buckle my seat belt; my hands shook so I could not pull up or button my trousers, and so on. Carbidopa-levadopa and a terrific neurologist changed all that; it felt as if I'd taken a miracle drug. Except for brief down times between doses, the pills have worked amazingly these past two years, returning my life to what it was like before PD.
At first the carbidopa levodopa seemed to help mom. Now her non motor symptoms seem to increase rapidly but it still helps with the motor symptoms.
My wife has taken it for at least 20 years. She uses 3.0 er now just once a day. a necessary drug for her