Which of the following anti-Parkinson drug may cause peripheral vasospasm? a) Ropinirole b) Amantadine c) Bromocriptine d) Carbidopa Answer: Bromocriptine Explanation: Bromocriptine is a dopamine receptors agonist that may cause peripheral vasospasm. It is contraindicated in patients with peripheral vascular disease. Ropinirole directly stimulate the dopamine receptors but it doesn’t cause vasospasm. Amantadine and Carbidopa do not act directly act on dopamine receptors.