Comparison
2C-B vs MDMA.
Side-by-side comparison of 2C-B and MDMA — dosage, effects, duration, legal status, and key harm reduction considerations.
- Category2C-BpsychedelicMDMAempathogen
- Chemical class2C-BphenethylamineMDMAsubstituted-amphetamine
- Common dose2C-B15–25 mgMDMA75–125 mg
- Peak duration2C-B120–240 minMDMA90–150 min
- Primary positives2C-BVisuels nets, yeux ouverts et fermés, Euphorie et fous rires en dose moyenne, Chaleur type MDMA en bas, psychédélique en hautMDMAEuphorie, Chaleur émotionnelle et ouverture, Empathie accrue
- Primary negatives2C-BNausées et inconfort gastrique 30–60 min après (oral), Brûlure très forte au sniff, Anxiété en dose forte, surtout avec stimulantsMDMABruxisme (crispation des mâchoires), Déshydratation ou hyponatrémie par surhydratation, Hyperthermie en environnement chaud
- Legal (DE)2C-BprohibitedMDMAillegal
- Legal (NL)2C-Bschedule-1MDMAillegal-tolerated
- Legal (US)2C-Bschedule-1MDMAschedule-1
- Legal (UK)2C-Bclass-aMDMAclass-a
| 2C-B | MDMA | |
|---|---|---|
| Category | psychedelic | empathogen |
| Chemical class | phenethylamine | substituted-amphetamine |
| Common dose | 15–25 mg | 75–125 mg |
| Peak duration | 120–240 min | 90–150 min |
| Primary positives | Visuels nets, yeux ouverts et fermés, Euphorie et fous rires en dose moyenne, Chaleur type MDMA en bas, psychédélique en haut | Euphorie, Chaleur émotionnelle et ouverture, Empathie accrue |
| Primary negatives | Nausées et inconfort gastrique 30–60 min après (oral), Brûlure très forte au sniff, Anxiété en dose forte, surtout avec stimulants | Bruxisme (crispation des mâchoires), Déshydratation ou hyponatrémie par surhydratation, Hyperthermie en environnement chaud |
| Legal (DE) | prohibited | illegal |
| Legal (NL) | schedule-1 | illegal-tolerated |
| Legal (US) | schedule-1 | schedule-1 |
| Legal (UK) | class-a | class-a |
Key harm-reduction difference
2C-B 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 2C-B 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 2C-B and MDMA?
- Check the interaction checker for this specific pair. Many combinations carry serious risk even at low doses.
- Which lasts longer, 2C-B or MDMA?
- Duration varies by route. See the comparison table above for peak and total duration by the most common route.
- 2C-B 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 2C-B 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 2C-B 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 2C-B 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 2C-B or MDMA?
- Reagent testing can distinguish most substances. Check the reagent guide tool for expected color reactions for both.