Parkinson'sOnline version Parkinson's by Jennifer Mauck 1 Signs of Parkinson's Disease 2 Side Effects of Levodopa 3 Side Effects of ropinirole (Requip) 4 Anticholinergics Resting Tremors Blank Expression Stooped Posture Slow Movements Low Dopamine Rigidity Orthostatic hypotension Difficulty swallowing Risk for Toxicity Choreiform movements Dystonic movements Hallucinations Dizziness Vomiting Decrease acetylcholine Can't See Can't Spit Drowsiness & confusion benztropine (Cogentin)