Substance guides

Suboxone vs. Vivitrol: Comparing opioid addiction medications

Published October 25, 2025 · 7 min read · Updated April 2026

Reviewed for accuracy by licensed clinical professionals.

Suboxone (buprenorphine) and Vivitrol (naltrexone injection) are both FDA-approved for opioid use disorder but work through completely different mechanisms.

How they differ

Suboxone is a partial opioid agonist that prevents withdrawal and reduces cravings by partially activating opioid receptors. Vivitrol is an opioid antagonist that blocks receptors entirely, preventing any opioid from producing effects.

Who benefits from each

Suboxone: people who need immediate withdrawal management, those who benefit from daily medication adherence, and patients with moderate to severe OUD. Vivitrol: people who have completed detox, those who prefer monthly dosing over daily, and those motivated by complete opioid blockade.

Practical differences

Suboxone can be started during withdrawal. Vivitrol requires 7-14 days opioid-free first. Suboxone is daily (sublingual). Vivitrol is monthly (injection). Suboxone has a small abuse potential. Vivitrol has none.

Authoritative sources

This article references guidelines from: SAMHSA · NIDA · ASAM

Frequently asked questions

Which is better, Suboxone or Vivitrol?

Neither is universally better. Suboxone offers easier initiation and daily dosing. Vivitrol offers monthly dosing and no abuse potential. The best choice depends on individual clinical factors.

Can you get high on Suboxone?

At prescribed doses for patients with tolerance, Suboxone does not produce a significant high due to its ceiling effect. It can produce euphoria in opioid-naive individuals.

Do you have to be clean to start Vivitrol?

Yes. You must be opioid-free for 7-14 days before Vivitrol to avoid precipitated withdrawal.

Disclaimer: Informational only. Not medical advice. SAMHSA: 1-800-662-4357.