Mecholyl vs methacholine

Mecholyl and methacholine both are nouns.

Word	Noun	Adjective	Verb	Adverb
Mecholyl	Yes	No	No	No
methacholine	Yes	No	No	No

As nouns, Mecholyl and methacholine are synonyms defined as:

Mecholyl and methacholine: parasympathomimetic drug (trademark Mecholyl) that stimulates secretions and smooth muscle activity

Mecholyl (noun)	methacholine (noun)
parasympathomimetic drug (trademark Mecholyl) that stimulates secretions and smooth muscle activity	parasympathomimetic drug (trademark Mecholyl) that stimulates secretions and smooth muscle activity