6-APB Dosage Guide

## Recognizing a 6-APB Emergency 6-APB overdose presents as a serotonergic and sympathomimetic toxicity syndrome, broadly similar to MDMA toxicity but with critical differences: the much slower onset (1-2 hours) means that double-dosing errors are common and the full toxic burden may not manifest until well after the point where intervention was possible; the longer duration (7-10+ hours) means the body sustains cardiovascular and thermoregulatory stress for a substantially longer period; and the 5-HT2B agonism introduces cardiac concerns not typically associated with acute MDMA toxicity. Between 2011 and 2012, ten deaths were identified at post-mortem with benzofury compounds in the UK, with the substance directly implicated in eight. **Warning signs that demand immediate action:** - **Extreme body temperature** -- 6-APB is frequently reported as producing more intense hyperthermia than MDMA. If the person is burning hot to touch and has stopped sweating, thermoregulatory failure has occurred. This is the most immediately life-threatening complication - **Seizures** -- any seizure activity requires emergency medical care - **Severe agitation or delirium** -- the mild psychedelic component of 6-APB means high-dose emergencies can include visual disturbances and confusion beyond what typical stimulant toxicity produces - **Chest pain, palpitations, or irregular heartbeat** -- 6-APB's cardiovascular effects are significant, and the long duration means the heart is under sustained strain. Cardiac arrhythmias have been documented - **Signs of serotonin syndrome** -- the combination of high fever, muscle rigidity or clonus (rhythmic muscle jerking), tremor, agitation, confusion, and tachycardia. This is a medical emergency - **Loss of consciousness** -- person cannot be roused - **Nausea and vomiting that will not stop** -- especially concerning if the person is becoming drowsy, as aspiration is a risk ## What to Do -- Step by Step **1. Call emergency services immediately.** Call 911 (US), 999 (UK), 112 (EU), or your local emergency number. Tell them a benzofuran/empathogen has been taken. Good Samaritan protections apply in most jurisdictions. **2. Cool the person down.** This is the highest-priority intervention after calling for help. Move to a cool environment. Remove excess clothing. Apply cool water to the neck, armpits, and groin. Fan continuously. Do not use ice water immersion without medical supervision. **3. Do not give more drugs.** If the person redosed early (a common scenario with 6-APB due to the slow onset), the second dose may still be coming on. The clinical picture may worsen substantially over the next 1-2 hours. Communicate this to paramedics. **4. Manage psychological distress.** The psychedelic component can produce frightening visual disturbances during a medical emergency. Speak calmly and steadily. Reduce stimulation. Do not restrain unless there is immediate danger. **5. Recovery position.** If unconscious but breathing, place on their side. Monitor breathing until help arrives. **6. Inform paramedics thoroughly.** Tell them 6-APB (a benzofuran empathogen, similar to MDMA) was taken, the approximate dose and timing of all doses, and any other substances involved. Emphasize the long duration -- medical staff familiar with MDMA may not expect symptoms to persist for 8-10+ hours. ## Medical Treatment Hospital management is supportive. Benzodiazepines for agitation and seizures. Active cooling for hyperthermia. IV fluids. Cyproheptadine for serotonin syndrome. Continuous cardiac monitoring -- particularly important with 6-APB given the 5-HT2B cardiac concerns, though acute valvulopathy from a single use has not been documented. The extended duration means clinical observation periods should be longer than for MDMA presentations. There is no specific antidote.