electromotive drug administration vs iontophoresis

electromotive drug administration and iontophoresis both are nouns.

Word	Noun	Adjective	Verb	Adverb
electromotive drug administration	Yes	No	No	No
iontophoresis	Yes	No	No	No

As nouns, electromotive drug administration and iontophoresis are synonyms defined as:

electromotive drug administration and iontophoresis: therapy that uses a local electric current to introduce the ions of a medicine into the tissues

Other synonyms of electromotive drug administration include EMDA, ionic medication, iontotherapy.

electromotive drug administration (noun)	iontophoresis (noun)
therapy that uses a local electric current to introduce the ions of a medicine into the tissues	therapy that uses a local electric current to introduce the ions of a medicine into the tissues