What is Sinemet CR?
Sinemet CR is a controlled-release tablet that may be given to help relieve the muscle stiffness, tremor, and weakness caused by Parkinson’s disease. It may also be given to relieve Parkinson-like symptoms caused by encephalitis, carbon monoxide poisoning, or manganese poisoning. Sinemet CR contains two drugs, carbidopa and levodopa. The drug that actually produces the anti-Parkinson’s effect is levodopa. Carbidopa prevents vitamin B6 from destroying levodopa, thus allowing levodopa to work more efficiently.