GHB (gamma hydroxybutyrate) or more commonly known as “The Date Rape Drug” or “Roofies” is a depressant, which means it slows down the messages travelling between the brain and the body. GBL (gamma butyrolactone) and 1,4-BD (1,4-butanediol) are chemicals that are closely related to GHB. Once GBL or 1,4-BD enter the body, they convert to GHB almost immediately.


GHB usually comes as a colourless, odourless, bitter or salty liquid, which is usually sold in small bottles or vials. It can also come as a bright blue liquid known as ‘blue nitro’, and less commonly as a crystal powder.

It can also come as a pill which is more commonly used to spike drinks.

GHB Overdose & Mixing with Other Drugs

Dangerous Signs:

If the dose is too high, you might overdose. If you have any of these symptoms, call an ambulance straight away by dialing 999 or 112:

  • Vomiting
  • Irregular or shallow breathing
  • Confusion, irritation and agitation
  • Hallucinations
  • Blackouts and memory loss
  • Unconsciousness that can last for 3 to 4 hours

Mixing GHB with other drugs:


Chance of overdose is greatly increased. GHB will interact with prescription drugs heightening the risk of cardiac arrest and respiratory failure.


Enormous strain on the body and risk of seizures.

Side Effects of

There is no safe level of drug use. Use of any drug always carries risk.

The effects of taking GHB with other drugs including over-the-counter or prescribed medications can be unpredictable and dangerous.