First plateau: At a dosage of 1.5 to 2.5 mg/kg, effects include a sensation of alertness, stimulant effects such as restlessness, increased heartbeat, and increased body temperature, intensification of emotions, general euphoria, euphoria linked to music, alteration of sensations of gravity, loss of balance, slight intoxication, and for some users nausea.
Second plateau: At 2.5 to 7.5 mg/kg, effects include the same effects of the first plateau, with added choppy sensory input, entering a dreamlike state of consciousness, increasing detachment from outside world, a heavier "stoned" feeling than with first plateau, and/or closed-eye hallucinations.
Third plateau: At 7.5 to 15.0 mg/kg, effects include flanging of visual effects, difficulty recognizing people or objects, chaotic blindness, dreamlike vision, inability to comprehend language, abstract hallucinations, delayed reaction time, decision making impairment, feelings of peace and quiet, near complete loss of motor coordination, short term memory impairment, and/or feelings of rebirth.
Fourth plateau: At 15.0 mg/kg or more, an individual may experience a perceived loss of contact and control with their own body, changes in visual perception, out-of-body experiences, perceptions of contact with "superior," supernatural, or other archetypal beings (ie. gods, aliens, vampires, etc.), other miscellaneous delusions, lack of movement or desire to move, rapid heart rate, complete blindness, increased hearing, and intensification of third plateau effects.
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