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- Detailed origin: Andes and South American Chaco (Argentina, Bolivia, Peru). Present in ancestral cultures such as the Incas and the Guarani.
- Popular names: Vilca, cebil, yopo, huilca
- Traditional method of use: Seeds of Anadenanthera colubrina, ground and inhaled as rapé or smoked. Used in rituals for connection with the divine.
- Main effects: Out-of-body experiences, intense visions, ego loss, nausea, tremors.
- Signs of intoxication: Seizures, transient paralysis, respiratory difficulties, profound confusion, collapse.
- Withdrawal symptoms: Not physically addictive. Possible dysphoria, anhedonia, or discouragement in frequent users.
- Acute treatment: Respiratory support if there is respiratory depression, sedation, intensive neurological observation.
- Hospital treatment: Continuous monitoring, possible intensive intervention in cases of collapse or seizures. Subsequent psychiatric follow-up.
