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Stylized moon graphic for Dry January, the month-long alcohol-free challenge
Dry January
Naltrexone hydrochloride chemical structure, the FDA-approved medication for alcohol use disorder
Naltrexone

Latest Articles

Apr 30, 2026

Timing Your Naltrexone Dose For Best Results

Karen Dion

Jul 28, 2025

How Long Should I Stay On Naltrexone?

Medically reviewed by Joshua D Lee, MD, MSc

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  • ¹ Oar Health membership plans include access to the Oar Health platform, virtual consultations with a healthcare professional, and medication if prescribed by a healthcare provider. 3 month membership plan costs $297, equating to $99/mo.
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  • ³ Verywell Health survey of Oar Health members, published March, 2023.
  • ⁴ Prescription medication is available only if prescribed by a licensed clinician.
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Naltrexone is a prescription medication used to treat alcohol dependence. It is available only if prescribed by a healthcare provider. You should not take naltrexone if you use opioids, including prescription drugs or street drugs that contain opioids, as naltrexone can cause sudden opioid withdrawal. Common side effects of naltrexone include nausea, sleepiness, headache, dizziness, vomiting, decreased appetite, painful joints, muscle cramps, and trouble sleeping. These are not all of the side effects of naltrexone. Tell your healthcare provider if you have any side effects that bother you or do not go away.
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