dopa vs levodopa

dopa and levodopa both are nouns.

Word	Noun	Adjective	Verb	Adverb
dopa	Yes	No	No	No
levodopa	Yes	No	No	No

As nouns, levodopa is a hyponym of dopa; that is, levodopa is a word with a more specific, narrower meaning than dopa:

dopa: amino acid that is formed in the liver and converted into dopamine in the brain
levodopa: the levorotatory form of dopa (trade names Bendopa and Brocadopa and Larodopa); as a drug it is used to treat Parkinson's disease

Other hyponyms of dopa include Bendopa, Brocadopa, L-dopa, Larodopa.

dopa (noun)	levodopa (noun)
amino acid that is formed in the liver and converted into dopamine in the brain	the levorotatory form of dopa (trade names Bendopa and Brocadopa and Larodopa); as a drug it is used to treat Parkinson's disease