Selegiline

A drug used in the treatment of Parkinson’s disease, either alone (in the disease’s early stage) or with levodopa. Selegiline is also used to treat the symptoms of parkinsonism due, for example, to repeated head injury; it is not used if the symptoms are drug-induced, however. Side effects may include nausea, vomiting, diarrhoea or constipation, dry mouth, and sore throat.