botanical medicine vs herbal therapy

botanical medicine and herbal therapy both are nouns.

Word	Noun	Adjective	Verb	Adverb
botanical medicine	Yes	No	No	No
herbal therapy	Yes	No	No	No

As nouns, botanical medicine and herbal therapy are synonyms defined as:

botanical medicine and herbal therapy: the use of plants or plant extracts for medicinal purposes (especially plants that are not part of the normal diet)

Other synonyms of botanical medicine include phytotherapy.

botanical medicine (noun)	herbal therapy (noun)
the use of plants or plant extracts for medicinal purposes (especially plants that are not part of the normal diet)	the use of plants or plant extracts for medicinal purposes (especially plants that are not part of the normal diet)