Gamma hydroxybutyrate (GHB), gamma butyrolactone (GBL) and 1,4-butanediol (1,4-BD; BDO): A literature review with a focus on UK fatalities related to non-medical use

Neurosci Biobehav Rev. 2015 Jun:53:52-78. doi: 10.1016/j.neubiorev.2015.03.012. Epub 2015 Apr 3.

Abstract

Misuse of gamma hydroxybutrate (GHB) and gamma butyrolactone (GBL) has increased greatly since the early 1990s, being implicated in a rising number of deaths. This paper reviews knowledge on GHB and derivatives, and explores the largest series of deaths associated with their non-medical use. Descriptive analyses of cases associated with GHB/GBL and 1,4-butanediol (1,4-BD) use extracted from the UK's National Programme on Substance Abuse Deaths database. From 1995 to September 2013, 159 GHB/GBL-associated fatalities were reported. Typical victims: White (92%); young (mean age 32 years); male (82%); with a drug misuse history (70%). Most deaths (79%) were accidental or related to drug use, the remainder (potential) suicides. GHB/GBL alone was implicated in 37%; alcohol 14%; other drugs 28%; other drugs and alcohol 15%. Its endogenous nature and rapid elimination limit toxicological detection. Post-mortem blood levels: mean 482 (range 0-6500; SD 758)mg/L. Results suggest significant caution is needed when ingesting GHB/GBL, particularly with alcohol, benzodiazepines, opiates, stimulants, and ketamine. More awareness is needed about risks associated with consumption.

Keywords: Deaths; Fatalities; GBL; GHB; Toxicity; United Kingdom (UK).

Publication types

  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • 4-Butyrolactone / adverse effects*
  • 4-Butyrolactone / metabolism
  • 4-Butyrolactone / pharmacokinetics
  • Butylene Glycols / adverse effects*
  • Butylene Glycols / metabolism
  • Butylene Glycols / pharmacokinetics
  • Female
  • Humans
  • Male
  • Sodium Oxybate / adverse effects*
  • Sodium Oxybate / metabolism
  • Sodium Oxybate / pharmacology
  • Substance-Related Disorders / epidemiology
  • Substance-Related Disorders / mortality*
  • United Kingdom / epidemiology

Substances

  • Butylene Glycols
  • Sodium Oxybate
  • 1,4-butanediol
  • 4-Butyrolactone