internal medicine vs general medicine

internal medicine and general medicine both are nouns.

Word	Noun	Adjective	Verb	Adverb
internal medicine	Yes	No	No	No
general medicine	Yes	No	No	No

As nouns, internal medicine and general medicine are synonyms defined as:

internal medicine and general medicine: the branch of medicine that deals with the diagnosis and (nonsurgical) treatment of diseases of the internal organs (especially in adults)

internal medicine (noun)	general medicine (noun)
the branch of medicine that deals with the diagnosis and (nonsurgical) treatment of diseases of the internal organs (especially in adults)	the branch of medicine that deals with the diagnosis and (nonsurgical) treatment of diseases of the internal organs (especially in adults)