Does Naltrexone Hydrochloride Interact with Disulfiram?
Naltrexone Hydrochloride and Disulfiram have a moderate drug interaction according to U.S. FDA drug labeling data. Safety and efficacy of concomitant use is unknown. Concomitant use of two potentially hepatotoxic medications is not ordinarily recommended unless probable benefits outweigh known risks. The mechanism involves both are hepatotoxic. Patients taking both medications should consult their healthcare provider before starting, stopping, or changing the dosage of either drug. This information is based on official FDA drug labeling sourced from OpenFDA and the NIH National Library of Medicine.
- Severity
- Moderate
- Disulfiram Class
- Aldehyde Dehydrogenase Inhibitor
- Management
- Monitor for effects
- Data Source
- U.S. FDA via OpenFDA
How This Interaction Works
The interaction between Naltrexone Hydrochloride and Disulfiram occurs because both are hepatotoxic. Clinically, this means safety and efficacy of concomitant use is unknown. concomitant use of two potentially hepatotoxic medications is not ordinarily recommended unless probable benefits outweigh known risks. This is classified as a moderate interaction. While it may not require stopping either medication, your healthcare provider should be aware you are taking both so they can monitor for potential effects and adjust treatment if necessary.
What To Tell Your Doctor or Pharmacist
If you are taking Naltrexone Hydrochloride and your doctor is considering prescribing Disulfiram (or vice versa), make sure to:
- Inform your doctor and pharmacist of all current medications, including over-the-counter drugs and supplements
- Ask whether the benefits of combining these medications outweigh the risks for your specific situation
- Ask what symptoms to watch for that would indicate the interaction is causing problems
- Ask whether any dosage adjustments are needed
- Never stop or change either medication without first consulting your healthcare provider