Naltrexone, originally for alcohol and opioid addiction, is being studied for smoking cessation. Learn what the evidence shows and other proven options.
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Naltrexone, originally developed and FDA-approved for alcohol and opioid use disorder, has been studied as a possible tool for smoking cessation — with mixed results that make it a supplementary consideration rather than a primary treatment. This article covers what the evidence actually shows and what treatments have stronger backing.
Key Takeaways on Naltrexone for Smoking Cessation
- Naltrexone is not FDA-approved specifically for smoking cessation; any use for this purpose is off-label.
- Research shows mixed results, with naltrexone possibly helping specific subgroups more than smokers generally.
- FDA-approved smoking cessation options — like varenicline, bupropion, and nicotine replacement therapy — have stronger evidence bases.
- Naltrexone may have a role in combination approaches, particularly for people managing co-occurring alcohol use.
How Naltrexone Works
Naltrexone is an opioid receptor antagonist, blocking the rewarding effects of opioids and, relevantly, reducing alcohol's rewarding effects — its established use is for alcohol and opioid use disorder. The theory behind its use for smoking cessation involves nicotine's own interaction with opioid reward pathways, though this mechanism is less direct than with alcohol or opioids.
What the Research Shows
Studies on naltrexone for smoking cessation have produced mixed results — some show modest benefit, particularly for smokers with specific characteristics like weight concerns about quitting, while broader population studies haven't shown consistent, strong effects. This is why it remains an off-label, secondary consideration rather than a first-line treatment.
FDA-Approved Smoking Cessation Options With Stronger Evidence
- Nicotine replacement therapy — patches, gum, lozenges — with a strong, well-established evidence base.
- Varenicline (Chantix) — specifically approved for smoking cessation, targeting nicotine receptors directly.
- Bupropion (Zyban) — an antidepressant also approved specifically for smoking cessation.
- Behavioral counseling — combined with medication, consistently improves quit rates beyond medication alone.
When Naltrexone Might Be Considered
Naltrexone might come up in specific situations — for example, someone managing co-occurring alcohol use disorder who's also trying to quit smoking, where naltrexone's established alcohol-related benefit could overlap usefully. This is a decision for a prescriber familiar with your full substance use picture, not a standalone smoking cessation choice.
Getting Support for Quitting Smoking
Whatever medication approach is considered, combining it with behavioral support consistently improves outcomes over medication alone. Lantana Recovery's addiction treatment programs address nicotine dependence alongside other substance use when relevant, and our nicotine addiction treatment resources cover evidence-based approaches specific to smoking cessation.
FAQ: Naltrexone and Smoking Cessation
Is naltrexone FDA-approved for quitting smoking?
What's the best evidence-based option for quitting smoking?
Could naltrexone help someone quitting both smoking and drinking?
Bottom Line
Naltrexone shows mixed, inconsistent evidence for smoking cessation specifically and isn't FDA-approved for that purpose. FDA-approved options like varenicline, bupropion, and nicotine replacement therapy, combined with behavioral support, remain the stronger evidence-based path for quitting smoking. Our alcohol addiction treatment program covers naltrexone's more established use.
Sources
- FDA — Approved Smoking Cessation Medicationshttps://www.fda.gov/tobacco-products/products-ingredients-components/smoking-cessation
- DailyMed (NIH) — Naltrexone prescribing informationhttps://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=6f3c8c65-4a51-46e6-9908-2e60a0c33e59
Reviewed by
Warren PhillipsCo-Founder, LMSW · Editorial Reviewer
Warren Phillips is a Co-Founder of Lantana Recovery and a Licensed Master Social Worker (LMSW) specializing in substance abuse and mental health treatment. He previously worked in various capacities at Turnbridge Addiction Treatment and Clearpoint Recovery Center before co-founding Lantana Recovery. Warren's clinical approach draws on a strengths-based perspective, Twelve Step philosophies, Cognitive Behavioral Therapy, and Motivational Interviewing. He brings both personal and professional experience to his work — as a person in long-term recovery from alcohol and illicit substances, he has used that experience to help shape Lantana's treatment programming. Warren grew up in Memphis, TN and St. Louis, MO, attended college in Mississippi, and lived in California and Connecticut before relocating to Charleston. He now lives in Mount Pleasant with his wife, Angela, and their two young children, Hall and Sam.
Written by the Lantana Recovery Editorial Team and reviewed for clinical accuracy before publication.
