What do doctors prescribe for alcoholism?

If you have started reading about medication for heavy drinking, you have probably noticed the same three names come up again and again: naltrexone, acamprosate, and disulfiram. These are the medications the FDA has approved for alcohol use disorder, and a clinician weighing them is not looking for the single best one. There isn't a universal winner. The three do genuinely different jobs, and the honest question is which trade-offs fit your goal, your health history, and where you are right now — a question you settle in conversation with a clinician, not by ranking a list.

The short version

• They work in three different ways. Naltrexone turns down the reward a drink gives you. Acamprosate steadies the restless, off-balance feeling that lingers after you stop. Disulfiram makes drinking physically unpleasant, so it works as a deterrent.
• They are built for different moments. One is often discussed for cutting down heavy drinking, one for staying stopped after you have already quit, and one for holding a firm line against any drinking.
• None of them is a first move during withdrawal. Stopping heavy daily drinking can be medically dangerous, and that safety question comes before any long-term medication.
• The evidence supports having the conversation, not crowning a favorite. Two of the three are better studied than the third, but "better studied" is not the same as "right for you."
• Fit is individual. The useful outcome of reading this is a sharper set of questions to bring to a clinician, not a decision made in advance.

The three medications, on equal footing

Here is each one answered with the same three questions, in the same order, so you can compare them fairly rather than reading three sales pitches.

Naltrexone

What it is. A prescription pill (also available as a monthly injection) that has been used for alcohol use disorder for decades. DailyMed's FDA label lists it as indicated for alcohol dependence.

How it is thought to work. Alcohol leans on the same reward chemistry your body uses for opioids — part of why a drink can feel like a lift. Naltrexone sits on those reward switches and blocks them, so drinking gives you less of that pleasant push. The American Academy of Family Physicians describes it this way and treats it as a useful add-on to counseling, not a standalone fix.

What it is FDA-indicated for. Reducing the reward of drinking, which is why it comes up for people who are still drinking and want to cut down, as well as for staying off alcohol. One firm caution: it can't be combined with opioid pain medication, so a clinician needs to know about any opioid use before it is on the table.

Acamprosate

What it is. A prescription pill, sold as Campral, that is meant for after you have already stopped drinking rather than while you are still drinking.

How it is thought to work. Months or years of heavy drinking leave the brain's "go" system over-revved to compensate for alcohol's calming effect. Take the alcohol away and that imbalance is still there, which is part of why early sobriety can feel so restless and raw. The pharmacology literature describes acamprosate as working on that over-active system to help it settle back toward normal.

What it is FDA-indicated for. Helping people who have already quit stay stopped — maintenance of abstinence in someone who is alcohol-free at the start. It leaves the body through the kidneys rather than the liver, which is one reason it sometimes comes up for people whose liver is already strained; an upset stomach is the usual complaint.

Disulfiram

What it is. The oldest of the three, sold as Antabuse. It works less on wanting a drink and more on what happens if you take one.

How it is thought to work. Normally your body breaks alcohol down in stages. Disulfiram blocks one of those steps, so a byproduct called acetaldehyde piles up if you drink — the same compound behind a bad hangover. Drink on it and you can feel flushed, nauseated, and unwell within minutes. It works like a tripwire, according to the FDA label on DailyMed, which calls it an aid for people who want to hold themselves to not drinking at all — and explicitly says it is not a cure.

What it is FDA-indicated for. Supporting sobriety in someone committed to not drinking. Because the whole point is the reaction, the safety conversation is different: it only makes sense for someone whose goal is zero alcohol, and even everyday products with alcohol in them can trigger a response.

Side by side

	Naltrexone	Acamprosate	Disulfiram
How it is thought to work	Blocks the reward a drink gives you	Steadies the over-revved brain after you quit	Makes drinking cause an unpleasant reaction
Often discussed for	Cutting down or staying stopped	Staying stopped after quitting	Holding a firm no-drinking line
How it is generally taken	Daily pill or monthly injection	Daily pill	Daily pill
Does drinking on it cause a reaction?	No	No	Yes — that is the point
A key thing to flag	Any opioid use or pain medication	How your kidneys are working	That your goal is zero alcohol

What actually differs in daily life

When and how you take it. Two of these are daily pills you simply remember to take. Naltrexone also comes as a once-a-month injection, which some people find easier to keep up with than a daily habit. Disulfiram and acamprosate are daily only. None of that makes one better — it is a question of which routine you will actually stick to.

Whether drinking causes a reaction. This is the sharpest split. On naltrexone or acamprosate, a drink does not make you physically sick; they change the wanting or the after-feeling, not your body's reaction to alcohol itself. Disulfiram is the opposite — the deterrent is the reaction. That makes it powerful for someone fully committed to abstinence and a poor fit for someone who might drink and would then be caught off guard.

Where you are in the process. Acamprosate is built for the after — for someone who has already stopped and wants help staying there. Naltrexone is more flexible, discussed both for cutting down while still drinking and for staying stopped. Disulfiram assumes you have decided on zero. So part of the match is simply honest about your goal: cutting back, staying off, or drawing a hard line.

What the evidence says — and doesn't. Not all three are equally studied. A comparative-effectiveness review by the Agency for Healthcare Research and Quality found reasonable support for oral naltrexone and acamprosate in reducing a return to drinking, and weaker evidence for disulfiram against a placebo. That does not crown a winner between the first two, and it does not mean disulfiram fails — for the right, committed person it can work well. It means the research supports having the conversation more than it supports any pre-made pick.

A gap worth naming

Most people who could discuss these medications never do. In 2024, an estimated 27.9 million people ages 12 and older had past-year alcohol use disorder — about 9.7% of that age group. In the same year, only about 2.1 million of them received any alcohol-use treatment, roughly 7.6%. The share who got a medication is smaller still.

That gap is not evidence the medicines don't work. It mostly means the conversation never happens — people don't see a clinician who raises it, or never reach the point of asking. If you are weighing these options at all, you are already doing the uncommon part.

How to think about the choice

The useful move is to name the job you need the medication to do, then bring that to someone who can weigh it against your health. Questions worth carrying in:

• What is my honest goal — cutting down, staying stopped, or holding a hard line at zero? Different medications are built around different answers.
• Am I still drinking now, or have I already stopped? Some options assume you have quit first.
• Do I take opioid pain medication, and how are my liver and kidneys? Each medication has its own must-flag.
• What happens if the first choice doesn't fit? A medication that doesn't suit you is a reason to adjust, not a verdict on you.
• Which parts of this are medical enough that they need a clinician, not an article?

Clero connects you with a licensed clinician by telehealth to talk through whether a medication like naltrexone fits your situation — the review an article like this can point toward but never stand in for.

The honest bottom line

No single medication is right for everyone with alcohol use disorder, and a page like this can't hand you one. Each of the three has a real strength and a real limit: naltrexone dials down the reward, acamprosate steadies the aftermath, disulfiram builds in a deterrent — and the right fit depends on your goal, your history, and where you are right now. Match the job to the option with a clinician who knows the whole picture, and treat a choice that doesn't stick as information, not failure.

This article is general education, not medical advice or a prescription. If drinking ever ties into thoughts of harming yourself, call or text 988. If stopping brings on severe withdrawal — a seizure, confusion, or hallucinations — treat it as an emergency and call 911 or go to an emergency room. For confidential treatment referrals, SAMHSA's National Helpline is 1-800-662-HELP.

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