Naltrexone and ADHD Medication: What's Known, What Isn't, and What to Tell Your Prescriber

Naltrexone and ADHD medication haven't been formally studied together, but naltrexone's main known interactions involve opioids, not stimulants. The bigger safety issue is usually what stimulants and alcohol do to each other.

What You'll Discover:

• Why ADHD and heavy drinking so often show up together.

• What research says, and doesn't say, about naltrexone with stimulants and non-stimulants.

• Why mixing stimulants with alcohol carries risks of its own.

• How to keep two prescribers on the same page.

• Where naltrexone can fit if you want to drink less or quit.

If you take medication for ADHD and you're thinking about naltrexone to cut back on drinking, you're asking a smart question. Two medications, often two prescribers, and one brain.

The short answer is that naltrexone's well-documented interactions involve opioids, and ADHD medications aren't opioids. The longer answer is that nobody has run formal studies on the combination, and that gap matters.

So here's what is actually known, what isn't, and how to make the pairing as safe as possible.

Why ADHD and Heavy Drinking Often Show Up Together

If you have ADHD and you've noticed your drinking creeping up, you're in very common company. We cover the full picture in our guide to ADHD and alcohol, but a few facts are worth repeating here.

According to the National Institute on Alcohol Abuse and Alcoholism, alcohol use disorder is significantly more common among people with ADHD than in the general population. The two conditions share genetic risk factors.

NIAAA also describes a loop many people recognize. Impulsivity and attention difficulties make it easier to drink more than planned. Alcohol then makes ADHD symptoms worse, which feeds the cycle.

The pattern often starts early. A meta-analysis of long-term studies found that children with ADHD were no more likely than other kids to ever try alcohol. They were, however, significantly more likely to develop alcohol abuse or dependence later on.

That distinction is useful. The challenge often isn't trying alcohol. It's what comes after, when stopping at the number you intended gets hard.

How Naltrexone Works and Where Its Known Interactions Are

Naltrexone is an opioid receptor blocker. When you drink, alcohol triggers a release of the brain's own opioids, which helps drive the pleasant buzz and the pull toward another round. Naltrexone blocks that signal.

Federal clinical guidance puts it simply: naltrexone reduces both the rewarding effects of alcohol and craving for it. It reaches peak levels within about an hour of a dose, and the liver converts it into an active form called 6-beta-naltrexol.

If you want the full mechanism, our explainer on what naltrexone is and how it works walks through it step by step.

That same federal guide includes a table of naltrexone's documented drug interactions. It's a short list. The main entries are opioid pain relievers, plus cough, cold, and anti-diarrheal medicines that contain opioids.

It also names two specific drugs: thioridazine (lethargy and sleepiness) and yohimbine (anxiety, higher pulse, and higher blood pressure).

The last entry is NSAID pain relievers combined with very high naltrexone doses of 200 to 250mg a day, which raised liver enzymes. That effect has not been seen in the standard dose range.

ADHD medications don't appear on that list at all.

What Is Known About Naltrexone With ADHD Medications

Here's the honest version. We could not find a single published study that formally tested naltrexone alongside an ADHD medication, stimulant or non-stimulant.

That cuts both ways. There's no documented harmful interaction. There's also no head-to-head safety data. "Not on the list" means nobody has flagged a problem, not that the pairing has been proven safe.

In practice, a prescriber who uses them together will watch closely how you respond. That's exactly why the details you share matter so much.

Stimulants: Amphetamine and Methylphenidate Products

Stimulants include amphetamine products (such as Adderall) and methylphenidate products (such as Ritalin). They work by boosting dopamine and norepinephrine signaling. They are not opioids.

Since naltrexone's known interactions run through opioid receptors, there's no established reason to expect a direct clash between the two.

Both medications do touch the brain's reward system, though, in different ways. That's one more reason to let each prescriber see the whole picture.

Stimulants can also raise heart rate and blood pressure. If you have any heart history, bring it up. It matters mostly because of what stimulants and alcohol do together, which we'll get to below.

Atomoxetine

Atomoxetine (Strattera) is a non-stimulant. Again, no formal studies with naltrexone turned up.

Two points are worth raising with your prescriber. NIAAA lists possible liver damage as a risk when atomoxetine is mixed with alcohol. And naltrexone guidance already recommends liver tests before you start and at intervals afterward.

That same guidance says liver tests should happen more often when another potentially liver-affecting medication is also prescribed. So your prescriber may want a baseline panel and closer follow-up. That's routine caution, not a red flag.

There's a comfort angle too. In one review, heavy drinkers taking atomoxetine were more likely to report nausea, and nausea is also the most common naltrexone side effect. Taking naltrexone with food often helps.

Guanfacine

Guanfacine is the other common non-stimulant. It isn't on NIAAA's alcohol interaction chart, it isn't on the federal naltrexone interaction list, and we found no studies pairing it with naltrexone.

That's an absence of data, not a green light. Ask your prescriber how alcohol and naltrexone fit with your dose, and report any drowsiness, dizziness, or lightheadedness.

Here's how the main options compare at a glance.

The Separate Risk of Mixing Stimulants and Alcohol

This is the part that tends to get lost. For many people, the biggest safety question isn't naltrexone plus ADHD medication. It's ADHD medication plus alcohol, with or without naltrexone.

A systematic review of ADHD medication combined with alcohol found that people who mixed methylphenidate with alcohol reported a diminished sense of drunkenness. They also drank significantly more than when they drank alone.

People combining dexamphetamine with alcohol described something similar: socializing longer, with less perceived drunkenness and less sense of losing control. Of course, feeling less drunk doesn't mean you're less impaired.

The review found that serious acute reactions at prescribed doses appeared uncommon. The authors were careful to add that the numbers were too small to rule out rarer effects.

They also pointed out the less obvious risk. When stimulants make it easier to drink more and stay out longer, the long-term harms of alcohol climb with it.

And they noted that manufacturers advise against combining stimulants or atomoxetine with alcohol, while offering no specific interaction data.

NIAAA's chart of alcohol and medication interactions spells out the specifics. With amphetamine products, it lists a possible increased risk of heart problems.

With methylphenidate, the chart lists dizziness, drowsiness, and impaired concentration. With atomoxetine, it lists possible liver damage.

There's a timing pattern worth noticing, too. Pay attention to whether your drinking clusters in the evening after your medication has worn off. That's useful information for both of your prescribers.

Where Naltrexone Fits for People With ADHD

If drinking has become your way to finally switch off at night, you probably know the pattern. The first drink feels like relief. The fourth one happens without much of a decision at all.

Naltrexone works on exactly that pull. By blunting the reward from alcohol, it makes the next drink less compelling, which leaves room for the choice you actually meant to make.

You can take it daily, or about an hour before you expect to drink. Either way, the goal is yours to set. Drinking less is a valid goal, and so is quitting.

Choose Your Horizon pairs naltrexone with physician-guided care, coaching, and daily tracking. It's an integrated solution built on clinical, neurological, and behavioral science, and your full medication list is part of the very first conversation.

What a Careful Start Can Look Like

There's no single protocol for starting naltrexone when you already take ADHD medication. A few habits make the first month much easier to read, though.

Start when your ADHD dose is stable. If both medications change in the same week, neither you nor your prescriber can tell what's causing what.

Ask about baseline liver tests. Naltrexone guidance recommends them before starting and at intervals afterward, and they matter even more if atomoxetine is part of your regimen.

Decide on daily or targeted dosing with your clinician. Daily dosing keeps coverage steady. Targeted dosing means taking naltrexone about an hour before situations where you expect to drink.

Track a few simple things for the first few weeks: how many drinks you have, how you sleep, your appetite, and your focus. Patterns show up quickly once they're written down.

Then check in. Many people notice a difference within the first two to four weeks, and that early conversation is the right time to adjust the plan together.

How to Keep Your Prescribers on the Same Page

When two clinicians prescribe for you, each one only knows what's in their own chart. Closing that gap is the single most useful safety step you can take.

Share these details with every prescriber:

• Every medication you take, including ADHD medication, naltrexone, supplements, and over-the-counter products.

• Your honest weekly drinking, including your heaviest days.

• Any heart history or high blood pressure readings.

• Any liver history and recent lab results.

• Any opioid pain medication, codeine cough syrup, or upcoming surgery or dental work.

Then leave the dosing to them. Don't skip your ADHD medication to "make room" for drinking, don't double up on naltrexone before a big night, and don't shift your timing on your own.

If you also take something for anxiety or mood, our guide to alcohol and anxiety medication covers those combinations.

For a broader look at what naltrexone does and doesn't mix with, see our overview of naltrexone drug interactions.

Questions Worth Asking at Your Next Appointment

A few direct questions can save a lot of guesswork. Bring them to whichever prescriber you see next.

Ask whether your ADHD medication, dose, or timing should change if you start naltrexone, or whether it's better to leave everything steady for now.

Ask how much alcohol, if any, makes sense with your specific ADHD medication, and which warning signs should prompt a call.

Ask whether you need liver tests and how often. Ask, too, who your main point of contact should be if a new side effect shows up.

Write the answers down. With two prescribers, a short shared note keeps everyone working from the same plan.

Side Effects and Telling Them Apart

The most common naltrexone side effects are nausea, vomiting, headache, dizziness, fatigue, nervousness, anxiety, and sleepiness. Less common ones include trouble sleeping and loss of appetite. Most are mild and fade with time.

If you start naltrexone and change an ADHD dose at the same time, it can be hard to tell which one is behind a new symptom. That's another reason to change one thing at a time when you can.

Call your clinician promptly if you notice signs of liver trouble, like yellowing skin or eyes, dark urine, or belly pain that lasts more than a few days.

If you drink heavily every day, don't stop abruptly without medical guidance. Seek emergency care for severe withdrawal symptoms like confusion, seizures, or hallucinations.

The Bottom Line

Naltrexone and ADHD medication haven't been formally studied together. What is documented is that naltrexone's key interactions involve opioids, and ADHD medications aren't on its known interaction list.

The more pressing risk is stimulants plus alcohol. Feeling less drunk than you are can lead to drinking more, and NIAAA flags a possible added heart risk with amphetamine products.

The practical answer is refreshingly simple. Tell every prescriber about every medication, be honest about how much you drink, and let them adjust the doses.

Wanting more control over your drinking is reason enough to ask for help. You don't need to wait for things to get worse.

Frequently Asked Questions

Can you take naltrexone with Adderall?

There are no formal studies of the combination, and Adderall isn't on naltrexone's documented interaction list. Whether to combine them is your prescribers' call, so make sure both know about both medications and how much you drink.

Does naltrexone make ADHD medication less effective?

There's no published evidence that it does, but the pairing hasn't been formally tested. If your focus or energy changes after starting naltrexone, tell your prescriber.

Is it safe to drink alcohol on ADHD medication?

Manufacturers advise against it. Research shows stimulants can make people feel less drunk and drink more, and NIAAA lists heart, liver, and concentration risks depending on the medication.

Can I take naltrexone with Strattera?

No formal interaction studies exist. Because alcohol with atomoxetine carries a liver caution and naltrexone already calls for liver tests, your prescriber may check your liver function more often.

Will naltrexone help my ADHD symptoms?

Naltrexone isn't an ADHD treatment. It targets the reward alcohol produces, so its job is helping you drink less or quit while your ADHD care continues as usual.

If you take ADHD medication and want a clear plan for your drinking, start with one quick, private step. Take the online Alcohol Use Assessment to see if naltrexone could be a good fit alongside the care you already have.