GHB — Safer Use & Harm Reduction

Evidence-based guidance for risk minimisation

Depressiva

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

combinations

Niemals mit Alkohol kombinieren — lebensbedrohliche Atemdepression und unkontrolliertes Bewusstloswerden

dosing

Exakte Dosierung schwierig — GHB-Lösungen variieren in Konzentration. Immer in kleinen Schritten dosieren (0,5 g)

dosing

Redosierung erst nach 2+ Stunden und nur, wenn der erste Peak deutlich abgeklungen ist

setting

Nie alleine konsumieren — Bewusstlosigkeit kann plötzlich eintreten. Tripsitter ist essenziell

safety

Keine schweren Maschinen, kein Autofahren — Sedierung kann nach kurzem Delay einsetzen

emergency

Bei Bewusstlosigkeit einer Person: stabile Seitenlage, Atemwege freihalten, Notarzt rufen (112)

dependence

Chronischer Konsum führt zu körperlicher Abhängigkeit — Entzug kann Krampfanfälle auslösen, medizinisch begleiten lassen

Warnings & Contraindications

Combination with alcohol or other CNS depressants (benzodiazepines, opioids) is frequently fatal — this combination is responsible for the majority of GHB-related deaths
Extremely narrow therapeutic window: the difference between a recreational dose and a dose causing unconsciousness can be less than 0.5g, and is affected by tolerance, body weight, food intake, and batch concentration
GHB withdrawal in dependent users can cause life-threatening seizures — requires medical supervision for detox
GHB is water-soluble and nearly tasteless — it can be added to drinks without detection; be vigilant in social settings
Anterograde amnesia is common at recreational doses — users may not remember events that occurred while using
Dosing is extremely difficult without laboratory-grade equipment: street GHB has variable and unknown concentration; always start with a small test dose
Never use GHB without a sober, informed person present who knows to call emergency services if you lose consciousness
Do not use alcohol on the same day as GHB
Use a volumetric syringe for dosing liquid GHB; never estimate by eye — small errors cause disproportionate effects

High-Risk Combinations

The following substances carry an elevated risk of dangerous interactions with GHB. This is not exhaustive.

MDMAKetaminAlkoholBenzodiazepineOpiate (Heroin, Morphin, Tramadol)

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

combinations

Niemals mit Alkohol kombinieren — lebensbedrohliche Atemdepression und unkontrolliertes Bewusstloswerden

dosing

Exakte Dosierung schwierig — GHB-Lösungen variieren in Konzentration. Immer in kleinen Schritten dosieren (0,5 g)

dosing

Redosierung erst nach 2+ Stunden und nur, wenn der erste Peak deutlich abgeklungen ist

setting

Nie alleine konsumieren — Bewusstlosigkeit kann plötzlich eintreten. Tripsitter ist essenziell

safety

Keine schweren Maschinen, kein Autofahren — Sedierung kann nach kurzem Delay einsetzen

emergency

Bei Bewusstlosigkeit einer Person: stabile Seitenlage, Atemwege freihalten, Notarzt rufen (112)

dependence

Chronischer Konsum führt zu körperlicher Abhängigkeit — Entzug kann Krampfanfälle auslösen, medizinisch begleiten lassen

Warnings & Contraindications

Combination with alcohol or other CNS depressants (benzodiazepines, opioids) is frequently fatal — this combination is responsible for the majority of GHB-related deaths
Extremely narrow therapeutic window: the difference between a recreational dose and a dose causing unconsciousness can be less than 0.5g, and is affected by tolerance, body weight, food intake, and batch concentration
GHB withdrawal in dependent users can cause life-threatening seizures — requires medical supervision for detox
GHB is water-soluble and nearly tasteless — it can be added to drinks without detection; be vigilant in social settings
Anterograde amnesia is common at recreational doses — users may not remember events that occurred while using
Dosing is extremely difficult without laboratory-grade equipment: street GHB has variable and unknown concentration; always start with a small test dose
Never use GHB without a sober, informed person present who knows to call emergency services if you lose consciousness
Do not use alcohol on the same day as GHB
Use a volumetric syringe for dosing liquid GHB; never estimate by eye — small errors cause disproportionate effects

GHB — Safer Use & Harm Reduction

Safer Use Guidance

Warnings & Contraindications

High-Risk Combinations

Support Synapedia

GHB — Safer Use & Harm Reduction

Safer Use Guidance

Warnings & Contraindications

High-Risk Combinations