Comparison
Ketamina vs MDMA.
Side-by-side comparison of Ketamina and MDMA — dosage, effects, duration, legal status, and key harm reduction considerations.
- CategoryKetaminadissociativeMDMAempathogen
- Chemical classKetaminaarylcyclohexylamineMDMAsubstituted-amphetamine
- Common doseKetamina50–100 mgMDMA75–125 mg
- Peak durationKetamina30–45 minMDMA90–150 min
- Primary positivesKetaminaEuforia, Disociación del cuerpo, Realce musical y sonoroMDMAEuforia, Calidez emocional y apertura, Empatía aumentada
- Primary negativesKetaminaAtaxia severa (pérdida de coordinación motora) con dosis altas, Náuseas, especialmente combinado con comida o alcohol, K-hole (disolución intensa del ego / experiencia extracorporal; buscada por unos, aterradora para otros)MDMABruxismo (apretar la mandíbula), Deshidratación o hiponatremia por exceso de agua, Hipertermia en ambientes calurosos
- Legal (DE)Ketaminaprescription-onlyMDMAillegal
- Legal (NL)Ketaminaschedule-1MDMAillegal-tolerated
- Legal (US)Ketaminaschedule-3MDMAschedule-1
- Legal (UK)Ketaminaclass-bMDMAclass-a
| Ketamina | MDMA | |
|---|---|---|
| Category | dissociative | empathogen |
| Chemical class | arylcyclohexylamine | substituted-amphetamine |
| Common dose | 50–100 mg | 75–125 mg |
| Peak duration | 30–45 min | 90–150 min |
| Primary positives | Euforia, Disociación del cuerpo, Realce musical y sonoro | Euforia, Calidez emocional y apertura, Empatía aumentada |
| Primary negatives | Ataxia severa (pérdida de coordinación motora) con dosis altas, Náuseas, especialmente combinado con comida o alcohol, K-hole (disolución intensa del ego / experiencia extracorporal; buscada por unos, aterradora para otros) | Bruxismo (apretar la mandíbula), Deshidratación o hiponatremia por exceso de agua, Hipertermia en ambientes calurosos |
| Legal (DE) | prescription-only | illegal |
| Legal (NL) | schedule-1 | illegal-tolerated |
| Legal (US) | schedule-3 | schedule-1 |
| Legal (UK) | class-b | class-a |
Key harm-reduction difference
Ketamina and MDMA differ most in their risk profiles and durations. Always research each independently before any session. If you are choosing between them based on safety alone, consult the full profiles and the interaction checker for any combinations you may be planning.
Related pages
FAQ.
- Is Ketamina stronger than MDMA?
- "Stronger" depends on the metric. Compare dose ranges, subjective intensity, and duration side by side above. Always factor in individual tolerance.
- Can I combine Ketamina and MDMA?
- Check the interaction checker for this specific pair. Many combinations carry serious risk even at low doses.
- Which lasts longer, Ketamina or MDMA?
- Duration varies by route. See the comparison table above for peak and total duration by the most common route.
- Ketamina vs MDMA: which is safer?
- Neither substance is "safe" in absolute terms. Harm is a function of dose, setting, purity, and individual factors. The comparison above covers the key risk differences.
- Are Ketamina and MDMA in the same drug class?
- See the category and chemical class rows above. Substances in different classes often have very different risk profiles even if subjective effects overlap.
- Is Ketamina legal where MDMA is?
- Legal status is substance- and jurisdiction-specific. See the legal status section for key countries.
- Where can I get harm reduction info for Ketamina and MDMA?
- Each substance has a full profile on this site with dosage, interactions, testing, and legal information. Follow the links at the bottom of this page.
- How do I test whether my substance is Ketamina or MDMA?
- Reagent testing can distinguish most substances. Check the reagent guide tool for expected color reactions for both.