Can I get treated online for naltrexone side effects?

Yes. A licensed provider on Ondoc reviews your symptoms and, prescribes treatment for the underlying cause — most commonly Alcohol use disorder.

How fast will I hear back?

Most online visits are reviewed in under 24 hours. Refills are often same-day.

Naltrexone side effects

Common early side effects include nausea, headache, and fatigue that typically improve within a week or two. A provider can adjust timing and dose online.

Also called: is naltrexone safe · naltrexone nausea · naltrexone weight loss

Medically reviewed by Dr. Ikechukwu Ogbu, MD

MD · Board-Certified, Internal Medicine · Last reviewed October 2026

Where this comes up clinically

Conditions this topic is usually discussed alongside. Not a recommendation to start, stop, or change any medication.

Alcohol use disorder

Commonly relevant for people looking into "Naltrexone side effects" — worth reviewing with a clinician who knows your history.

When to see a clinician

You're starting, stopping, or switching a medication and want a clinician's read on side effects
You've had a new symptom you think might be medication-related
You're due for the lab monitoring this medication requires
You want a second opinion on whether the medication is still the right choice