---
title: "Naltrexone: uses, safety, cost, access"
description: "Naltrexone is an opioid blocker used for alcohol and opioid use disorder, and sometimes off-label in weight plans. Learn safety, side effects, and access."
canonical: "https://www.vitalsvault.com/treatment-learn/naltrexone"
last-updated: 2026-08-22
---

# Naltrexone: uses, safety, cost, access

> Naltrexone is an opioid blocker used for alcohol and opioid use disorder, and sometimes off-label in weight plans. Learn safety, side effects, and access.

---

Canonical HTML: https://www.vitalsvault.com/treatment-learn/naltrexone
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