anovulatory drug vs anovulant

anovulatory drug and anovulant both are nouns.

Word	Noun	Adjective	Verb	Adverb
anovulatory drug	Yes	No	No	No
anovulant	Yes	No	No	No

As nouns, anovulatory drug and anovulant are synonyms defined as:

anovulatory drug and anovulant: a contraceptive in the form of a pill containing estrogen and progestin to inhibit ovulation and so prevent conception

anovulatory drug (noun)	anovulant (noun)
a contraceptive in the form of a pill containing estrogen and progestin to inhibit ovulation and so prevent conception	a contraceptive in the form of a pill containing estrogen and progestin to inhibit ovulation and so prevent conception