Evidence-based harm reduction information to help minimize the risks associated with substance use. Based on guidance from public health organizations including DanceSafe, Erowid, and the WHO.
Call emergency services immediately (911 in USA). In the US, the Never Use Alone hotline is 1-800-484-3731 — stay on the line. Naloxone reverses opioid overdoses and is available OTC in most US states.
Use reagent test kits to verify substance identity and screen for adulterants like fentanyl. Available from DanceSafe: dancesafe.org ↗
Begin with a fraction of what you think you need. Potency varies enormously. You can always take more — you cannot take less once consumed.
Have a sober person present, or use the Never Use Alone hotline (US): 1-800-484-3731. Someone who can call for help if needed.
Mixing substances — especially depressants — multiplies overdose risk exponentially. Check TripSit's combination chart before combining anything: tripsit.me ↗
Re-dosing too soon is a leading cause of accidental overdose. Wait for full effects before considering additional doses, and track cumulative intake carefully.
Regular use builds tolerance and physical/psychological dependence. Plan breaks between uses. The SAMHSA helpline is free and confidential: 1-800-662-4357
Overdose risk factors: Using alone, mixing with alcohol or benzodiazepines, unknown potency, returning after a tolerance break.
Overdose signs: Slow/stopped breathing, blue/purple lips or fingertips, unresponsive, gurgling sounds (death rattle).
Response: Call 911. Administer Naloxone (Narcan) — intranasal spray available OTC at most pharmacies without prescription. Repeat after 2–3 minutes if no response. Put in recovery position.
Fentanyl warning: Illicitly manufactured fentanyl is 50–100x more potent than heroin. Always test with fentanyl test strips. Even a trace amount can be fatal.
Resources: HarmReduction.org ↗ | SAMHSA Naloxone Info ↗
Key risks: Cardiovascular strain, hyperthermia (overheating), dehydration, serotonin syndrome (MDMA + other serotonergic drugs), psychosis (meth with heavy use).
MDMA specific: Test with Marquis, Mecke, and Simon's reagents. Space uses by at least 3 months to reduce neurotoxicity risk. Avoid in hot environments without cooling breaks. Safe sipping: ~500mL/hour if dancing — not more. Avoid mixing with SSRIs, MAOIs, or other serotonergic substances.
Cocaine: High cardiac risk. Never mix with alcohol (creates cocaethylene, more toxic). Test for fentanyl contamination — present in a significant percentage of cocaine samples.
Resources: DanceSafe ↗ | Drugs.com MDMA Info ↗
Acute risks: Psychedelics rarely cause physical overdose but carry significant psychological risks — particularly anxiety, panic, and (rarely) acute psychosis in predisposed individuals.
Set and setting: Mental state before use (set) and environment (setting) are the primary determinants of experience quality and safety. Only use with trusted people in familiar, safe environments.
Contraindications: Personal or family history of psychosis, schizophrenia, or bipolar disorder significantly increases risk. Avoid with certain medications (tramadol, lithium with psychedelics = dangerous seizure risk).
Ketamine: Dissociative anesthetic. K-holes (extreme dissociative states) can cause dangerous disorientation. Bladder damage from chronic use is well-documented — urinary health monitoring is important for regular users.
Resources: MAPS (Psychedelic Research) ↗ | Erowid Experience Vault ↗
Critical combination warning: Mixing CNS depressants (benzodiazepines + alcohol + opioids) is the single most dangerous drug combination and responsible for the majority of overdose deaths. Each combination multiplies respiratory depression risk.
Physical dependence: Benzodiazepines cause rapid physical dependence. Withdrawal from heavy use can cause life-threatening seizures — never stop abruptly without medical supervision.
GHB/GBL dosing: The difference between an effective dose and an overdose is very small (narrow therapeutic window). Never combine with alcohol. Effects are dose-dependent and unpredictable with counterfeit products.
Resources: Benzo.org.uk — Withdrawal Guide ↗
Edibles warning: Edible effects take 30 minutes to 2 hours to onset. The most common cannabis emergency is overconsumption from re-dosing before the first dose has taken effect. Wait at least 2 hours before considering additional doses.
High-potency concentrates: Dabs, wax, and shatter can contain 60–90% THC — dramatically more potent than flower. Start with tiny amounts. Cannabis-induced anxiety and panic attacks, while not dangerous, can be very distressing.
Cannabis use disorder: Regular heavy use can lead to dependence in approximately 9% of users. Adolescent use is associated with adverse cognitive effects.
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