Last Updated on June 26, 2026
Compounded naltrexone is a customized version of the FDA-approved medication that can be prepared in lower starting doses or specialized formulations when prescribed by a licensed clinician. For people taking naltrexone to drink less alcohol, compounded formulations may help improve tolerability by allowing a gradual dose increase, while pairing medication with behavioral support can improve long-term success.
You looked up naltrexone. You thought it might help you change your relationship with drinking. Then, after you read about naltrexone side effects, you wondered if your stomach could handle it — because the last time you tried something new for your health, the side effects were the reason you stopped.
That hesitation isn’t unfounded, but it’s also the reason compounded naltrexone exists. Here’s what you need to know about compounded naltrexone: what it is, how it’s different than the standard pill, and why it’s Sunnyside Med‘s preferred offering.
A Little Background on Naltrexone
Naltrexone is a daily pill that can help you drink less alcohol by reducing cravings.
How naltrexone works at the receptor level: naltrexone blocks opioid receptors in the brain, the ones responsible for the reward signal alcohol produces. When those receptors are blocked, alcohol stops feeling like as much of a treat.
Ian Andersen, Sunnyside’s co-founder and a naltrexone user himself, describes the shift this way: “Drinking might feel different — and that’s the point. Less exciting. Less rewarding. Sometimes just less fun. That’s the medication doing its job.”
What Is Compounded Naltrexone?
The process of compounding is simpler than it sounds. A licensed compounding pharmacy takes an active pharmaceutical ingredient — in this case, naltrexone — and prepares a medication tailored to an individual prescription rather than simply dispensing a standard commercially manufactured product. That can allow for lower starting doses, alternative dosage forms, or formulations made without certain inactive ingredients found in commercial versions.
Compounded medications are regulated differently from FDA-approved manufactured drugs. They may be used when a prescriber determines that a patient has a specific clinical need that a commercially available product may not fully meet. (Examples can include allergies to inactive ingredients, difficulty swallowing tablets, or the need for a dosage not commercially available.)
While the compounded formulation is not FDA-approved as a finished product, naltrexone has been FDA-approved since 1994. What it means practically is that the molecule behind the medication has a well-studied pharmacological record, with over 118 clinical trials and 20,976 participants analyzed in a 2023 JAMA meta-analysis.
The 50 mg Problem
The standard commercial naltrexone tablet comes in one dose: 50 mg. Most prescriptions written today start there. And for a meaningful number of people, that is also where the story ends.
Nausea happens because of what naltrexone does at the neurological level. When opioid receptors are blocked suddenly and completely, the system reacts. A meta-analysis of 24 randomized controlled trials involving 2,861 patients by Srisurapanont and Jarusuraisin found that naltrexone significantly increased nausea, dizziness, and fatigue compared to placebo, with nausea occurring at more than twice the rate.
For most people, these side effects fade within one to two weeks. For 20 to 30 percent of people, the discomfort lasts longer. The person who is functional, private, managing a full life, and hasn’t told anyone they are trying to drink less is not likely to push through two weeks of nausea without meaningful support.
Why People Quit Before the Medication Has a Chance to Work
More than half of naltrexone prescriptions are never refilled. That is not an efficacy problem. That is a tolerability and support problem.
O’Malley et al. (2000), which is cited in NCBI Bookshelf clinical guidance, found that gradual dosing decreases the risk for naltrexone-induced nausea. The clinical precedent for starting below 50 mg has existed for over two decades. The problem is that standard commercial tablets make it practically difficult to act on that guidance.
Compounded naltrexone is a solution to that problem.
What Makes Sunnyside Med’s Compounded Formulation Different
Sunnyside Med’s compounded naltrexone starts at a lower dose in the beginning, then increases as the patient becomes accustomed to the experience. Ideally, that provides a gentle on-ramp, designed specifically for the window when most people quit.
The formulation also includes Vitamin B6, which has been studied for its potential role in reducing nausea and is not available in any standard commercial naltrexone tablet. (The B6 and naltrexone combination has not been studied in a standalone randomized controlled trial for this specific purpose, but it’s still a clinically informed design.)
Why the Medication Is Only Part of the Program
The COMBINE study, the largest NIH-funded alcohol treatment trial with 1,383 patients, found that naltrexone combined with behavioral intervention significantly outperformed either approach alone.
Sunnyside Med pairs the compounded formulation with a behavior-change app, human coaching available seven days a week, and a community of people who are not in crisis — they are just trying to drink a little less. Members who engage consistently with the app are 2.5 times more likely to stay on their medication through the critical early weeks.
As Sunnyside co-founder Nick Allen puts it: “A prescription without support is just a pill. Sunnyside Med is both.”
Who Compounded Naltrexone Is Actually For
Compounded naltrexone for alcohol is for anyone who pours a third glass after the kids are in bed and wonders why they did it. For the person who tells themselves Saturday is just one beer, and it never is. For the retiree whose social calendar has quietly become a drinking calendar without anyone planning it that way.
Sunnyside Med is 100% online, with no insurance required and discreet shipping to all 50 states.
What to Expect in the First 30 to 90 Days
Week one feels like… starting a new medication. Possible mild nausea or fatigue, usually manageable. Many people find the starting dose noticeably easier than jumping straight to a full commercial tablet.
In week two, you’ll move to the regular dose. For a lot of people, side effects are already fading by then. Weeks three through twelve are when the reward signal from alcohol finally begins to soften, and the pull toward a second or third drink starts to feel less urgent.
Members describe the shift along the lines of “the chase is gone.” The compulsion to keep going after the first drink fades. Alcohol becomes, in other words, less interesting.
Among active Sunnyside Med members with 50% or more app engagement, 78% achieved a meaningful reduction in drinks over 12 weeks. (Individual results vary, and remember: Sunnyside’s support structure is what makes the timeline sustainable.)
How to Get Compounded Naltrexone
The process takes about ten minutes. Complete a short online health assessment, a licensed clinician reviews your intake, and your medication ships discreetly to your door. Pricing is $50 for the intake, then $99 per month billed quarterly, with HSA and FSA eligibility and no insurance required. A licensed clinician reviews every Sunnyside Med application before you receive a prescription.
Sunnyside Med’s compounded naltrexone program starts with a short quiz that takes less than five minutes. Take it at joinsunnysidemed.com/quiz.
Naltrexone is a prescription medication, and this content is educational — it is not a substitute for medical advice. A licensed clinician reviews every Sunnyside Med application.
Frequently Asked Questions (FAQ): Compounded Naltrexone
Is compounded naltrexone the same as regular naltrexone?
Compounded naltrexone contains the same active ingredient as commercially manufactured naltrexone, but it is prepared by a licensed compounding pharmacy according to an individual prescription. The compounded formulation itself is not FDA-approved, although naltrexone as an active ingredient has been FDA-approved since 1994.
Why do some people choose compounded naltrexone?
Some clinicians prescribe compounded naltrexone because it allows for lower starting doses, customized formulations, or the exclusion of certain inactive ingredients. This may be helpful for people who are concerned about side effects or have specific clinical needs.
Is compounded naltrexone more effective than regular naltrexone?
There is no evidence that compounded naltrexone is inherently more effective than commercially manufactured naltrexone. Its potential advantage is improved tolerability or dosing flexibility, which may help some people stay on treatment longer.
Does insurance cover compounded naltrexone?
Insurance coverage for compounded medications varies by plan, and many people pay out of pocket. Sunnyside Med does not require insurance, and its compounded naltrexone program is HSA- and FSA-eligible. This makes it a convenient option for people who want to get started without navigating insurance requirements.
Sunnyside is the Perfect Companion for Your Naltrexone Journey
Sunnyside is the #1 mindful drinking app. Since 2020, we’ve been honing our harm-reduction approach and have helped over 400,000 people cut out 22 million drinks from their baseline habits. 96.7% of our members report success in drinking less, and a third-party study found that our approach reduced weekly drinking by 33% after 12 weeks.
Think of Sunnyside as the front door for anyone who wants to change their relationship with alcohol. If you want to drink less, we can help you get there. If you want to eventually quit, but want to take a gradual approach, we can make that happen.
When you sign up for Sunnyside, you’ll take a quick 3-minute personalization quiz, then hop into the app. It’s as simple and quick as that.
We’ll give you weekly plans to gradually reach your drinking goals, and we’ll provide nudges, coaching, exercises, and advice to help you get there.
Sunnyside is a full-featured mindful drinking app, and thus the perfect companion for your Naltrexone journey. Naltrexone will actively help you reduce cravings around alcohol, and Sunnyside will help you understand your triggers and patterns, giving you a healthy system for habit change.
If and when you see success drinking less, and you choose to stop taking naltrexone, Sunnyside is a tool you can keep using to maintain your healthy habits.
Everyone who signs up for Sunnyside gets a free 15-day trial. After that, the subscription is $8.25/month. Our members save an average of $50 per month, easily paying for the cost of the subscription.
Whether you’re currently taking naltrexone or just doing some research on alcohol moderation, we’d love to have you sign up for our 15-day free trial today.
