L-dopa as a vitamin-B6 antagonist.
D000596:Amino Acids / Q000378:metabolism; D004295:Dihydroxyphenylalanine / Q000378:metabolism / Q000494:pharmacology*; D006801:Humans; D011736:Pyridoxine / Q000037:antagonists & inhibitors* / Q000378:metabolism
D000596:Amino Acids; D004295:Dihydroxyphenylalanine; D011736:Pyridoxine