phytotherapy vs herbal therapy

phytotherapy and herbal therapy both are nouns.

Word	Noun	Adjective	Verb	Adverb
phytotherapy	Yes	No	No	No
herbal therapy	Yes	No	No	No

As nouns, phytotherapy and herbal therapy are synonyms defined as:

phytotherapy 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 phytotherapy include botanical medicine.

phytotherapy (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)