Gamma-hydroxybutyrate (ghb) - Evzio (Naloxone Hydrochloride) Interaction
Herbal: Gamma-hydroxybutyrate (ghb)
Drug: Naloxone Hydrochloride
Brand names:
Evzio, Kloxxado

Medical Content Editor Dr. Brian Staiger, PharmD
Last updated
May 18, 2025
Interaction Details
Naloxone Hydrochloride is classified as belonging to the following category: Naloxone (Narcan)
Theoretically, naloxone may antagonize the effects of GHB.
Theoretically, naloxone may antagonize the effects of GHB, but anecdotally, naloxone is not effective for treating GHB poisoning.
Interaction Rating
Likelihood of Occurrence
PossibleInteraction has been documented in animal or in lab research, or the interaction has been documented in humans but is limited to case reports or conflicting clinical research exists
References
- Anon. Multistate outbreak of poisonings associated with illicit use of gamma hydroxy butyrate. JAMA 1991;265:447-8.
Naloxone Hydrochloride Overview
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Naloxone nasal spray is used along with emergency medical treatment to reverse the life-threatening effects of a known or suspected opiate (narcotic) overdose in adults and children. Naloxone nasal spray is in a class of medications called opiate antagonists. It works by blocking the effects of opiates to relieve dangerous symptoms caused by high levels of opiates in the blood.
Gamma-hydroxybutyrate (ghb) - More Interactions
Gamma-hydroxybutyrate (ghb) interacts with 272 drugs
Interaction Rating Key
These severity listings are for informational use only. Never start, stop or otherwise change your therapy before speaking with your provider.
Major | The combined use of these agents is strongly discouraged as serious side effects or other negative outcomes could occur. |
Moderate | Use cautiously under the care of a healthcare professional or avoid this combination. A significant interaction or negative outcome could occur. |
Minor | Be aware that there is a chance of an interaction. Watch for warning signs of a potential interaction. |
Unknown | No interactions have been reported or no interaction data is currently available. |
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DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.
© 2021 Therapeutic Research Center, LLC
Drug descriptions are provided by MedlinePlus.