Benserazide is always given with levodopa. It works by preventing levodopa from being broken down before it reaches the brain. This allows for a lower dose of levodopa, which causes less nausea and vomiting.
Nausea, Postural hypotension (low blood pressure), Psychiatric disturbances, Abnormal heart rhythm, Abnormal involuntary movements, Altered libido, Anemia, Drowsiness, Fluctuating disability, Hallucination, Decreased blood pressure, Decreased white blood cell count, Increased liver enzymes, Reduced blood platelets, Vomiting
Benserazide is used in the treatment of Parkinson's disease.
Benserazide on its own has little therapeutic effect but it works synergistically in combination with levodopa.