L-dopa is an amino acid precursor that is commonly used in the treatment of Parkinson's disease. It is often referred to by a number of different names, including levodopa, L-3,4-dihydroxyphenylalanine, and 3,4-dihydroxy-L-phenylalanine. Regardless of the name, L-dopa works by increasing dopamine levels in the brain, which can help improve movement and reduce other symptoms of Parkinson's disease. Other synonyms for L-dopa include el dopa, dopar, dopaflex, and madopar. While these terms may not be as commonly used as L-dopa or levodopa, they are still important to be aware of for those who work in the medical field or who are impacted by Parkinson's disease.