Lodosyn: Full prescribing information from RxList.MedlinePlus: Carbidopa and Levodopa: Provides information on usage, precautions, side effects and brand names when available. Data provided by government agencies and health-related organizations.Stalevo (carbidopa, levodopa and entacapone) - Novartis: Official pharmaceutical site for this combination product for the treatment of Parkinson's disease.