We review recent reports suggesting that use of selective serotonergic
agents that either inhibit synaptic reuptake or have specific seroton
in receptor affinities may benefit a variety of motor disturbances in
Parkinson's disease. The complex, mixed motoric effects of these agent
s in Parkinson's disease have not allowed for a consistent view on the
interrelationship between dopamine and serotonin (5HT) in motor contr
ol but may speak to the nature of dysregulated neurotransmission in th
e disease.