Lactaid vs lactase

Lactaid and lactase both are nouns.

Word	Noun	Adjective	Verb	Adverb
Lactaid	Yes	No	No	No
lactase	Yes	No	No	No

As nouns, Lactaid and lactase are synonyms defined as:

Lactaid and lactase: any of a group of enzymes (trade name Lactaid) that hydrolyze lactose to glucose and galactose

Lactaid (noun)	lactase (noun)
any of a group of enzymes (trade name Lactaid) that hydrolyze lactose to glucose and galactose	any of a group of enzymes (trade name Lactaid) that hydrolyze lactose to glucose and galactose