n :  a toxic ammonium base [C₉H₂₀NO₂]⁺ that is biochemically related to acetylcholine, is found esp. in fly agaric, acts directly on smooth muscle, and when ingested produces profuse salivation and sweating, abdominal colic with evacuation of bowels and bladder, contracted pupils and blurring of vision, excessive bronchial secretion, bradycardia, and respiratory depression .
 
 
 
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