G, fantasy, grievous bodily harm (GBH), juice, liquid ecstasy, liquid E, liquid X, Georgia Home Boy, soap, scoop, cherry meth, blue nitro, fishies

What is GHB?

GHB (gamma-hydroxybutyrate) is a central nervous system depressant, which means it slows down the messages travelling between the brain and the body. Although it is sometimes called liquid ecstasy it is not chemically related to ecstasy and has an entirely separate chemical profile and effects.

GHB usually comes as a liquid, and is sold in vials, bottles or fish-shaped soy sauce containers. It is colourless but may have colour added (often blue) to stop it being mistaken for water or other clear liquids. It is odourless and can have either a bitter or a salty taste. Less often, GHB is found in the form of a white powder.

GHB is usually swallowed but may be injected, snorted or inserted anally.

What are the effects?

The initial effects of GHB occur 15 to 20 minutes after oral administration, with peak effects occurring 30 to 60 minutes post-ingestion. The effects of GHB can last from one and a half hours, up to three hours, or even longer if large doses have been consumed.

The short-term effects of GHB include:

  • Feelings of euphoria and increased wellbeing
  • Increased libido
  • Drowsiness
  • Nausea and vomiting
  • Visual disturbances
  • Agitation and dizziness
  • Coordination
  • Respiratory depression and distress (Quick Guide to Drugs and Alcohol, 2017)

What are the risks?

There is a real risk of overdose. Signs of acute GHB toxicity include agitation, excitation, respiratory depression, respiratory arrest, coma, vomiting and seizures.

Of particular concern is the combination of GHB with other drugs, especially other depressants, such as alcohol or benzodiazepines, which increase the risk.

Injury may occur due to confusion, dizziness, or an abrupt loss of consciousness.

Mixing GHB with other drugs

When GHB is mixed with other depressants, such as alcohol or benzodiazepines, it increases the depressant effects of both drugs, which may lead to respiratory distress and even death. Small doses of GHB are potentially very potent and when combined with alcohol or methamphetamines the risk of overdose is greatly increased (Quick Guide to Drugs and Alcohol, 2017).

Toxicity and overdose

Overdosing is a serious danger with GHB. The chemical composition of GHB is highly variable. It’s very easy to take too much GHB and the difference between the amount needed to get high and the amount that causes an overdose can be hard to judge (ADF, 2020).

Serious adverse effects can include sudden sedation and respiratory distress. Analysis of different vials of GHB has shown that the concentration varies considerably, so users can never be sure of how much they are taking.

Dependence and withdrawal

A GHB dependence syndrome has been recognised by clinicians since the early 1990s. Tolerance to GHB develops rapidly, leading to dose escalation and more frequent use.

There is a potentially severe withdrawal syndrome that is a strong motivator to maintain use. The onset of withdrawal occurs within six to 72 hours after last use and may last for five to 15 days.

Withdrawal symptoms include:

  • Fast heart rate
  • Slow heart rate
  • Tremors
  • Vomiting
  • Seizures
  • Cardiac arrest
  • Renal failure
  • Anxiety
  • Paranoia
  • Visual and auditory hallucinations
  • Agitated excited delirium (Darke, Lappin & Farrell, 2019)

Mental health

GHB withdrawal is often associated with symptoms of anxiety and restlessness. Symptoms typically manifest within 24 hours of last consumption. Hallucinations are also reported, most commonly visual and auditory. Delirium, delusions and paranoia, and psychosis in the absence of delirium have all also been reported (Darke, Lappin & Farrell, 2019).


Evidence from better-researched drugs suggests that services providing good social support, as well as psychological interventions to help maintain motivation and improve coping skills, may be effective (Quick Guide to Drugs and Alcohol, 2017).

Emergency info

If you, or someone around you, is experiencing undesired or distressing psychological or physical symptoms from the intake of alcohol or other drugs please seek immediate medical attention.

If you need urgent help from ambulance services call Triple Zero (000). If a person has been mixing drugs with alcohol or other drugs, tell the paramedic exactly what has been taken.


For free and confidential advice about alcohol and other drugs, call the National Alcohol and Other Drug hotline on 1800 250 015.

The hotline will automatically direct you to the Alcohol and Drug Information Service in your state or territory.

More resources

The Illicit Drug Reporting System is an Australian monitoring system that identifies emerging trends of local and national interest in illicit drug markets.

The Ecstasy and Related Drugs Reporting System is an Australian monitoring system for ecstasy and related drugs that identifies emerging trends of local and national interest.

The Clinician’s Guide to Illicit Drugs and Health examines the health effects of each of the major illicit drugs.

The Australian Institute of Health and Welfare collects information on alcohol and tobacco consumption, and illicit drug use among the general population in Australia.

The Australian Bureau of Statistics is Australia’s national statistical agency, providing official statistics on a range of economic, social, population and environmental matters of importance to Australia.


A Quick Guide to Drugs and Alcohol (3rd ed.) (2017). Sydney, Australia: Drug Info.

Alcohol and Drug Foundation (2019). GHB. Retrieved from

Darke, S., Lappin, J., & Farrell, M. (2019). The Clinician’s Guide to Illicit Drugs and Health, Great Britain: Silverback Publishing.


Date Commenced
13 Jan 2021
Resource Type
Fact Sheets