2C-B — Safer Use & Harm Reduction

Evidence-based guidance for risk minimisation

Psychedelika

Harm Reduction

The safest option is always abstinence. If substances are used regardless, evidence-based precautions can meaningfully reduce risk. The guidance below is informational — it does not make substance use safe.

Safer Use Guidance

dosing

Niedrig einsteigen: 10–15 mg oral für Erstanwender, nicht direkt zu 20+ mg

dosing

Nüchtern konsumieren — Essen verlangsamt den Wirkungseintritt stark und erhöht Übelkeitsrisiko

setting

Set & Setting: ruhige, vertraute Umgebung, besonders bei Dosen über 20 mg

setting

Tripsitter bei höheren Dosen (>20 mg) empfehlenswert, insbesondere bei Unerfahrenen

combinations

Keine Kombination mit Lithium (Krampfrisiko) oder MAO-Hemmern

combinations

Vorsicht bei Kombination mit MDMA (5-HT2A-Desensibilisierung beeinträchtigt 2C-B-Wirkung, Cardiotoxizität)

health

Kreislaufbelastung beachten: Blutdruckanstieg möglich — bei Herzerkrankungen kontraindiziert

dosing

Toleranz entwickelt sich schnell: mind. 2 Wochen Pause zwischen Trips empfohlen

Warnings & Contraindications

Combination with stimulants (MDMA, amphetamine) dramatically increases cardiovascular load — reduce doses substantially or avoid entirely
2C-B + MAOI: significant potentiation and unpredictable interactions — avoid
Severe dose-sensitivity: the difference between 20 mg and 30 mg can mean the difference between manageable and overwhelming — weigh precisely
Nasal insufflation is significantly more bioavailable than oral and causes intense burning pain — adjust dose down by 30-40% if insufflating
Do not combine with lithium — seizure risk as with all serotonergic psychedelics
Use a milligram-accurate scale; start with 12-15 mg oral for first experience
Wait 90 minutes before concluding a dose was insufficient
Marquis reagent: 2C-B turns green/blue-green; orange or purple indicates adulterants

High-Risk Combinations

The following substances carry an elevated risk of dangerous interactions with 2C-B. This is not exhaustive.

MAO-HemmerSSRISNRIandere PsychedelikaAlkohol

See the full Interactions page for details.

Disclaimer: This information is provided for educational purposes only and does not constitute medical advice. It does not make substance use safe. If you have concerns about substance use, please consult a qualified healthcare professional or contact a local drug support service.

Laden…

Safer Use Guidance

dosing

Niedrig einsteigen: 10–15 mg oral für Erstanwender, nicht direkt zu 20+ mg

dosing

Nüchtern konsumieren — Essen verlangsamt den Wirkungseintritt stark und erhöht Übelkeitsrisiko

setting

Set & Setting: ruhige, vertraute Umgebung, besonders bei Dosen über 20 mg

setting

Tripsitter bei höheren Dosen (>20 mg) empfehlenswert, insbesondere bei Unerfahrenen

combinations

Keine Kombination mit Lithium (Krampfrisiko) oder MAO-Hemmern

combinations

Vorsicht bei Kombination mit MDMA (5-HT2A-Desensibilisierung beeinträchtigt 2C-B-Wirkung, Cardiotoxizität)

health

Kreislaufbelastung beachten: Blutdruckanstieg möglich — bei Herzerkrankungen kontraindiziert

dosing

Toleranz entwickelt sich schnell: mind. 2 Wochen Pause zwischen Trips empfohlen

Warnings & Contraindications

Combination with stimulants (MDMA, amphetamine) dramatically increases cardiovascular load — reduce doses substantially or avoid entirely
2C-B + MAOI: significant potentiation and unpredictable interactions — avoid
Severe dose-sensitivity: the difference between 20 mg and 30 mg can mean the difference between manageable and overwhelming — weigh precisely
Nasal insufflation is significantly more bioavailable than oral and causes intense burning pain — adjust dose down by 30-40% if insufflating
Do not combine with lithium — seizure risk as with all serotonergic psychedelics
Use a milligram-accurate scale; start with 12-15 mg oral for first experience
Wait 90 minutes before concluding a dose was insufficient
Marquis reagent: 2C-B turns green/blue-green; orange or purple indicates adulterants