<unk>  (INN) or<unk>  (3,4-dihydroxy-L-phenylalanine) is an intermediate in<unk> mine biosynthesis. In clinical use,<unk>  is administered in the management of Parkinson's disease.
Levodopa
Melevodopa
Donepezil
Bromperidol
Carbidopa
Rivastigmine 
Rivastigmine
Benperidol