It is often noted that the effects of 4-AcO-DMT are markedly similar to those of consuming psilocybin containing mushrooms. This similarity is thought to be the result of both 4-AcO-DMT and psilocybin being metabolized into the same psychoactive compound, psilocin, after consumption.
The effects of 4-AcO-DMT are therefore primarily psychedelic, and similar to those of consuming psilocybin containing mushrooms.
Positive Effects:
Euphoria
Increased energy, stimulation
Enhanced tactile sensations
Enhanced appreciation of music
Sense of spiritual insight/fulfillment
Neutral Effects:
Strong amplification of emotions (both positive and negative)
Visual and auditory hallucinations
Accelerated but unfocussed thought processes
Altered perception of space and time (especially at high doses)
Mydriasis (pupil dilation)
Compulsive yawning
Negative Effects:
Emotional instability (sense of terror, paranoia, panic attacks, psychotic episodes)
Dysphoria and confusion (increased risk of inadvertent injury)
Temporary
hypertension (elevated blood pressure)
Jaw clenching / gurning
Gastrointestinal discomfort (nausea, abdominal cramps, diahrrea)
Muscle weakness
Inability to concentrate