This fungus contains several toxic compounds, the best known of which is Muscarin. The symptoms of poisoning do not develop at once, usually twelve to fourteen hours elapse before the initial attack. There is no antidote, treatment, entirely symptomatic (Schneider). Agaricus acts as an intoxicant to the brain, producing more vertigo and delirium than alcohol, followed by profound sopor with lowered reflexes.

Jerking, twitching, trembling, and itching are strong indications. Incipient phthisis; is related to the tubercular diathesis, anæmia, chorea, twitching ceases during sleep. Various forms of neuralgia and spasmodic affections, and neurotic skin troubles are pictured in the symptomatology of this remedy. It corresponds to various forms of cerebral excitement rather than congestion. Thus, in delirium of fevers, alcoholism, etc. General paralysis. Sensation as if pierced by needles of ice. Sensitive to pressure and cold air. Violent bearing-down pains. Symptoms appear diagonally as right arm and left leg. Pains are accompanied by sensation of cold, numbness and tingling.