Amantadine   32 studies
Apomorphine   15 studies
Benserazide   2 studies
Benztropine   6 studies
Biperiden   2 studies
Bromocriptine   11 studies
Cabergoline   17 studies
Carbidopa   58 studies
Dexetimide   256 studies
Droxidopa   8 studies
Entacapone   25 studies
Gabapentin   109 studies
Levodopa   145 studies
Lisuride   5 studies
Memantine   88 studies
Piribedil   3 studies
Pramipexol   63 studies
Ropinirole   46 studies
Selegiline   22 studies
Sinemet   35 studies
Tolcapone   3 studies
Trihexyphenidyl   1 study