Atropinism

A condition or poisoning caused by excessive use or overdose of atropine, a drug that affects the nervous system.

From atropine (a toxic alkaloid from deadly nightshade) + -ism (suffix indicating a condition or state). Atropine itself comes from Atropos, one of the Greek Fates. The -ism suffix became productive in medical terminology during the 19th century to describe drug-induced conditions.