Atropine and Mydriatic

Atropine noun - A poisonous crystalline alkaloid extracted from the nightshade family; used as an antispasmodic and to dilate the eye pupil; also administered in large amounts as an antidote for organophosphate nerve agents or organophosphate insecticides.

Mydriatic and atropine are semantically related. In some cases you can use "Mydriatic" instead a noun "Atropine".

Mydriatic noun - A drug that causes the pupil of the eye to dilate; used to aid eye examinations.

Atropine and mydriatic are semantically related. Sometimes you can replace term "Atropine" with "Mydriatic", this nouns are similar.