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Naltrexone

Naltrexone

Psychiatric Prescription only ATC code: N07BB04

Prescription status is set country by country — the label where you live is the one that applies.

Beta: the medication section is still being tested, and its data may contain errors. Do not rely on it for a decision about your own treatment.

Typical dose
50 mg
1× a day

A usual adult range, not a national label — the dose and the timing differ by country and by product.

Used for

  • Alcohol or opioid dependence

Approved uses differ by country — some of these may be off-label or unapproved where you live.

Worth knowing

  • Blocks opioid painkillers; stop opioids 7-10 days before starting
  • Watch liver enzymes
  • Nausea is common at the start

Do not combine with

Markers to watch

Reference information, not medical advice. Discuss any change with your doctor.