Selegiline

Mechanism of Action:
It selectively inhibits Monoamine Oxidase-B which causes the metabolism of dopamine and phenylethylamine.

Action:
It enhances and prolongs the Anti-Parkinsonian effects of levodopa but alone it is not of much benefit.

Uses:
It is used in the early stages of Parkinson's disease. It can also be used in Senile Dementia and depression.