Leukeran vs chlorambucil

Leukeran and chlorambucil both are nouns.

Word	Noun	Adjective	Verb	Adverb
Leukeran	Yes	No	No	No
chlorambucil	Yes	No	No	No

As nouns, Leukeran and chlorambucil are synonyms defined as:

Leukeran and chlorambucil: an alkylating agent (trade name Leukeran) used to treat some kinds of cancer

Leukeran (noun)	chlorambucil (noun)
an alkylating agent (trade name Leukeran) used to treat some kinds of cancer	an alkylating agent (trade name Leukeran) used to treat some kinds of cancer