Alkeran vs melphalan

Alkeran and melphalan both are nouns.

Word	Noun	Adjective	Verb	Adverb
Alkeran	Yes	No	No	No
melphalan	Yes	No	No	No

As nouns, Alkeran and melphalan are synonyms defined as:

Alkeran and melphalan: antineoplastic drug (trade name Alkeran) used to treat multiple myeloma and some other malignancies

Alkeran (noun)	melphalan (noun)
antineoplastic drug (trade name Alkeran) used to treat multiple myeloma and some other malignancies	antineoplastic drug (trade name Alkeran) used to treat multiple myeloma and some other malignancies