phytotherapy vs botanical medicine

phytotherapy and botanical medicine both are nouns.

Word	Noun	Adjective	Verb	Adverb
phytotherapy	Yes	No	No	No
botanical medicine	Yes	No	No	No

As nouns, phytotherapy and botanical medicine are synonyms defined as:

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

Other synonyms of phytotherapy include herbal therapy.

phytotherapy (noun)	botanical medicine (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)