Atropine's effects are close to those of ibotenic acid, and may even exacerbate the symptoms. Symptoms appear within 30 minute to 2 hours after ingestion, and last for several hours. Drowsiness is a common symptoms, and many who ingest these mushrooms fall asleep and can not be roused. This facet of the syndrome can be particularly frightening for the attending physician, as most cases involve patients w ho arrive in this apparently comatose state. The resulting panicked reaction and overtreatment, generally produces no benefit to the patient.
Recovery is normally spontaneous.
Atropine is not indicated.