Excessive yawning is often accompanied by other coinciding effects such as increased salivation and a runny nose. It is most commonly induced under the influence of moderate dosages of tryptamine psychedelic compounds, such as psilocybin, 4-AcO-DMT, 4-HO-MET, and ayahuasca.
Compounds within our psychoactive substance index which may cause this effect include:
- Responsible use
- Subjective effects index
- Dissociatives - Subjective effects
- Deliriants - Subjective effects
- Psychedelics - Subjective effects