=== Harm Reduction ===
==== Forms & Identification ====
GBL circulates as a pure, colorless liquid with a faint solvent-like odor — easily confused with water at a glance. Because it is sold industrially as wheel cleaner, paint stripper, and solvent, purity varies between sources, and industrial-grade products may contain manufacturing impurities not intended for human exposure. Standard [[glossary:reagent-kit|reagent tests]] designed for other substances do not reliably identify or quantify GBL; confirming identity typically requires specialized analysis.
The critical practical concern is volumetric precision. GBL is dosed in fractions of a milliliter, and the difference between a recreational and dangerous dose can be less than 0.5 mL. Oral syringes marked in 0.1 mL increments — not teaspoons, eyeballed capfuls, or unmarked pipettes — are the only appropriate measuring tool.
{{Guideline}}
==== Guidelines ====
* '''Always measure with an oral syringe''' marked in 0.1 mL increments. Never estimate, pour from the bottle, or use bottle caps.
* '''Start with a threshold dose and wait at least 90 minutes''' before considering whether to [[glossary:redose]]. GBL's compressed timeline makes "I don't feel it yet" a dangerous impulse — onset varies but full effects may take longer than expected.
* '''Set a strict redosing limit beforehand.''' The short duration creates a powerful [[effect:compulsive-redosing-urge]]; each successive dose compounds risk. A timer or [[glossary:sitter|trusted companion]] can enforce the limit.
* '''Never use alone.''' GBL can produce sudden [[glossary:loss-of-consciousness]]. A sober companion who knows what has been taken, when, and how much is the single most effective safety measure.
* '''Eat a light meal 1–2 hours beforehand.''' Food slows [[glossary:absorption]] and moderates peak [[glossary:intensity]]. Never use on a completely empty stomach.
* '''Avoid all other depressants''' — [[substance:alcohol]], [[substance_class:psychoactive/opioid|opioids]], [[substance_class:chemical/benzodiazepine|benzodiazepines]], [[substance:ketamine]], antihistamines, sleep [[glossary:medication|medications]]. Even small amounts of alcohol dramatically increase risk.
* '''Keep the container clearly labeled and stored away from drinks.''' GBL is colorless and water-miscible; accidental [[glossary:ingestion]] by others is a documented cause of harm.
{{/Guideline}}
{{Emergency}}
==== Emergency Response ====
'''Recognizing an emergency:'''
* Unconsciousness with inability to be roused by voice or firm shoulder pressure
* Slow, shallow, or irregular breathing (fewer than 10 breaths per minute)
* Blue or grey lips and fingertips
* [[effect:vomiting]] while unconscious or semi-conscious
* [[glossary:seizure]] activity
'''Immediate steps:'''
* '''1.''' Call emergency services immediately if the person cannot be woken or is breathing abnormally.
* '''2.''' Place the person in the [[glossary:recovery-position]] (on their side, mouth pointing downward) to prevent choking on vomit.
* '''3.''' Stay with them. Monitor breathing continuously.
* '''4.''' Do NOT induce vomiting — GBL is absorbed too rapidly for this to help, and vomiting while unconscious risks fatal [[glossary:aspiration]].
* '''5.''' Do NOT give them food or water.
* '''6.''' Do NOT leave an unconscious person "to sleep it off." GBL-induced unconsciousness is not sleep — respiratory arrest can occur.
'''What to tell the dispatcher:'''
Substance taken (GBL or "G"), amount if known, time of ingestion, current symptoms, and whether any other substances were involved. [[glossary:good-samaritan-law|Good Samaritan laws]] in many jurisdictions protect people who call for help during a [[glossary:drug-emergency]].
'''Reversal agents:''' None exist. Treatment is entirely supportive — [[glossary:airway]] protection and ventilation.
{{/Emergency}}
{{Aftercare}}
==== Aftercare & Integration ====
After GBL use, [[glossary:hydration]] and light nutrition support recovery. The short duration means most acute effects resolve within two hours, but [[glossary:fatigue]], mild [[effect:confusion]], and mood dip can persist for several hours afterward.
The most important [[glossary:aftercare]] consideration is honest self-monitoring for escalating use patterns. GBL's [[glossary:rapid-onset]] and short duration produce a [[glossary:reinforcement]] cycle that can shift from occasional use to around-the-clock dosing within days. If dosing frequency is increasing, or if the thought of not having a supply produces [[effect:anxiety]], these are early warning signs of developing [[glossary:dependence]].
{{/Aftercare}}
{{Recovery}}
==== Recovery & Support ====
GBL dependence requires medical management — unsupervised [[glossary:withdrawal]] carries serious risk including seizures, psychiatric [[glossary:disturbance]], and death. Anyone using GBL daily or near-daily should seek medical advice before stopping.
Treatment options include medically supervised tapering (using pharmaceutical [[substance:ghb]] or [[substance:baclofen]] under clinical oversight), inpatient [[glossary:detoxification]] with benzodiazepines or [[substance_class:chemical/barbiturate|barbiturates]], and ongoing support for [[glossary:psychological-dependence]]. [[glossary:peer-support]] communities familiar with GHB/GBL-specific challenges exist in many countries, particularly within chemsex [[index:harm-reduction|harm reduction]] organizations in Europe and Australia.
{{/Recovery}}