Stalevo, which combines Carbidopa and Entacapone, is used to treat Parkinson’s disease by enhancing the effects of levodopa, the primary treatment for the disease. It works by reducing symptoms like tremors and stiffness while prolonging the effect of levodopa. Common side effects include nausea, dizziness, and dyskinesia (involuntary movements). Regular monitoring of liver and kidney function may be required, and caution is advised when using other medications that affect the nervous system. Always follow your doctor’s dosing instructions closely.