Revised May 1, 2002; August 31, 2007; August 27, 2008; April 21, 2013; and September 10, 2016.
Copyright 1998-2016 by John W. Allen.



Mushroom John's
Ultimate Field Guide to Magic Mushrooms




SYMPTOMS AND EFFECTS
 

PSYCHOACTIVE EFFECTS OF PSILOCYBIAN MUSHROOMS

Symptoms produced by eating fresh hallucinogenic mushrooms begin to occur within 15 to 30 minutes after ingestion (or from 5 to 10 minutes when prepared in the form of tea or soup). Symptoms persist for up to four to six hours after ingestion. In 1960, Clinical effects studied by Hollister et al. (1962) for psilocybine intoxication in humans was reported as being:

"0-30 minutes - Slight nausea, giddiness (light-headed), abdominal discomfort, weakness, muscle aches and twitches, shivering, anxiety, restlessness, and a numbness of lips.

30-60 minutes - Visual effects (blurring, brighter colors, sharper outlines, longer after-images, visual patterns with closed eyes). Increased hearing, yawning, sweating, facial flushing. Decreased concentration and attention, slow thinking, feelings of unreality, depersonalization, dreamy state, in-coordination, tremulous speech.

60-120 minutes - Increased visual effects (colored patterns and shapes, mostly with eyes closed). Wave-motion of viewed surfaces. Impaired distant perception. Euphoria, increased perception, and a slowed passage of time.

120-240 minutes - Waning and nearly complete resolution of above effects. Returning to normal within 4-12 hours. Other effects often include: Decreased salivation and appetite; uncontrollable laughter; transient sexual feelings and synesthesias (e.g., `seeing' sounds)."

For comparison with the clinical experience described above, the following is an excerpt from one of R. Gordon Wasson's experience with psilocybin mushrooms:

"The mushrooms take effect differently with different persons. For example, some seem to experience only a divine euphoria, which may translate itself into uncontrollable laughter. In my case I experienced hallucinations. What I was seeing was more clearly seen than anything I had seen before. At last I was seeing with the eye of the soul, not through the coarse lenses of my natural eyes. Moreover, what I was seeing was impregnated with weighty meaning: I was awe-struck."




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