Mithracin vs mithramycin

Mithracin and mithramycin both are nouns.

Word	Noun	Adjective	Verb	Adverb
Mithracin	Yes	No	No	No
mithramycin	Yes	No	No	No

As nouns, Mithracin and mithramycin are synonyms defined as:

Mithracin and mithramycin: an antineoplastic drug (trade name Mithracin) used to treat cancer of the testes

Mithracin (noun)	mithramycin (noun)
an antineoplastic drug (trade name Mithracin) used to treat cancer of the testes	an antineoplastic drug (trade name Mithracin) used to treat cancer of the testes