Α-Difluoromethyl-DOPA
α-Difluoromethyl-3,4-dihydroxyphenylalanine (DFMD, DFM-DOPA) is a DOPA decarboxylase inhibitor. See also 
 Carbidopa
 Methyldopa

References 

Aromatic L-amino acid decarboxylase inhibitors
Alpha-Amino acids
Catecholamines
Organofluorides