Excessive yawning

Excessive yawning can be described as a physical effect which induces repeated and spontaneous yawning despite a complete absense of sedation or sleepiness. The experience of this effect most commonly occurs on hallucinatory tryptamines such as psilocin, psilocybin, psilacetin, 4-HO-MET and others.

Psychoactive substances

Compounds within our psychoactive substance index which may cause this effect include:

• 4-AcO-DMT
• Psilocin

See also

• Responsible use
• Subjective effects index
• Dissociatives - Subjective effects
• Deliriants - Subjective effects
• Psychedelics - Subjective effects