Which medications work best to help me stop drinking?

If you have landed here hoping for a single name — the one drug that works best — the honest starting point is that there isn't one. Three medications are FDA-approved for alcohol use disorder, and they do genuinely different jobs. Which one fits you depends on your goal, your health history, and how you actually drink, and that match is a conversation with a licensed clinician rather than a ranking you can read off a page.

That is not a dodge. It is the useful frame. Once you stop asking "which is strongest" and start asking "which does the job I need," the options sort themselves out quickly.

The short version

• Three approved options, three different mechanisms. Naltrexone turns down the reward a drink gives you; acamprosate steadies a brain that stays restless after you quit; disulfiram makes drinking physically unpleasant. A fourth drug, topiramate, is sometimes used off-label.
• They are built for different goals. Some are studied for cutting down, some for staying stopped after you have already quit. The goal you name changes which one is even on the table.
• "Best-supported" is not the same as "best for you." Two of the three have stronger evidence behind them, but strength of evidence describes a population, not your kidneys, your other medications, or your goal.
• None of them is a withdrawal medication. Stopping heavy daily drinking can be dangerous on its own; the safety question comes before the long-term-medication question.
• The right next step is a comparison you can discuss, not a verdict to obey.

Meet the three on equal footing

Each of these is described with the same three questions, in the same order, so you can compare like for like.

Naltrexone

What it is: One of the three medications the FDA has approved for alcohol dependence, taken by mouth.

How it is thought to work: Part of what makes a drink feel good runs through the brain's own reward chemistry — the same system that responds to opioids. Naltrexone sits on those receptors and blocks them, so the pleasant lift a drink gives you is muted. SAMHSA describes it as reducing both cravings and the amount people drink; the American Academy of Family Physicians explains that opioid receptors likely carry some of alcohol's pleasant effect, which is why blocking them can make a drink feel less worth it.

What it is used for: Its FDA label covers the treatment of alcohol dependence, and notes it works as part of a broader plan rather than on its own. One firm caution: it is not for someone taking opioid pain medication or in opioid withdrawal, so that history has to be on the table before it is considered.

Acamprosate

What it is: Another oral option among the three approved medications, but pointed at a different moment in the process.

How it is thought to work: Months of heavy drinking leave the brain's "go" and "calm-down" signals out of balance, and that imbalance can linger for weeks after the last drink — part of why early sobriety feels so raw and restless. Acamprosate is understood to work on that over-revved system, helping it settle back toward normal. It leaves the reward from a drink alone; its job is steadying the aftermath.

What it is used for: It is approved to help people stay stopped once they have already quit — not to help someone cut down while still drinking daily. A practical note: it clears the body through the kidneys rather than the liver, which is why kidney function comes up when a clinician weighs whether it fits.

Disulfiram

What it is: The oldest of the three approved medications, and the one that works by deterrence rather than by changing cravings.

How it is thought to work: Your body normally breaks alcohol down in two steps. Disulfiram blocks the second step, so a byproduct called acetaldehyde piles up if you drink — flushing, nausea, a racing heart. It functions like a tripwire: the deterrent is knowing that drinking will make you feel ill.

What it is used for: Its label frames it as an aid for people who want to stay in a state of enforced sobriety, and states plainly that it is not a cure. It only works if taken consistently, which is why it tends to suit people who want a hard, external line between themselves and a drink.

Side by side

	Naltrexone	Acamprosate	Disulfiram
How it works	Blocks the reward a drink gives you	Steadies the restless "go" system after you quit	Makes drinking cause an unpleasant physical reaction
What it's for	Reducing drinking / cravings	Staying stopped after quitting	Enforced sobriety by deterrence
How it's taken	Daily tablet	Daily tablet	Daily tablet
Drinking on it	No sickness; the drink just feels flatter	No physical reaction	Deliberately causes flushing, nausea
Worth flagging	Not with opioid medication	Kidneys are checked	Only works if taken consistently

What actually separates them, in plain terms

Whether your goal is cutting down or staying stopped

This is often the fork that matters most. Naltrexone is studied in people who are still drinking and want less of it, so a "cut back" goal fits it naturally. Acamprosate is built around the period after you quit, to help the not-drinking hold. Disulfiram sits at the far end — it is for someone who has decided on abstinence and wants a physical reason to stick to it. Name your goal plainly and two of the three usually fall away on their own.

What happens if you drink while taking it

Here the three genuinely diverge, and it is worth being clear-eyed. On naltrexone, a drink simply feels less rewarding; nothing dramatic happens. On acamprosate, drinking causes no special reaction either. Disulfiram is the exception by design — drinking on it is meant to make you sick. That is the point, but it is also why it demands more caution and more certainty about your commitment before starting.

What the evidence base looks like

The picture is not evenly balanced, and pretending otherwise would be false fairness. An Agency for Healthcare Research and Quality review found the strongest support for naltrexone and acamprosate as oral options, while disulfiram had thinner evidence against placebo in controlled studies. That does not make disulfiram useless — it works differently, and its deterrent design is hard to test in a blinded trial — but it does mean the two better-studied drugs come up first in most clinical conversations. Strength of evidence is a statement about groups, though, not a prediction about you.

None of them is for withdrawal

Worth stating on its own, because it is a real safety line: not one of these three is a medication for getting through withdrawal. If you have been drinking heavily every day, stopping abruptly can bring on shaking, confusion, or seizures, and that is a medical situation, not a willpower one. The safe-stopping question comes first; the long-term-medication question comes after.

How to think about the choice

You are not choosing in the dark, but you are also not meant to choose alone. The most useful thing you can do before a clinical conversation is turn your situation into questions:

• What am I actually aiming for — cutting down, or stopping and staying stopped? (This alone narrows the field.)
• Given my kidney and liver health, other medications, and any opioid use, which options are even safe for me?
• Do I want something that changes how a drink feels, or an external deterrent I can't easily talk myself past?
• What happens if the first medication doesn't fit — what's the next conversation?

Clero exists to make that conversation easier to start: it connects you with a licensed clinician by telehealth to talk through whether a medication like naltrexone fits your situation. The deciding still happens between you and that clinician — the point is to remove the friction of finding one.

It is worth naming one number here, because it reframes the shame that often rides along with medication questions. In 2024, an estimated 27.9 million people in the United States had past-year alcohol use disorder, yet only about 697,000 — roughly 2.5% — received any medication for it, per NIAAA.

That gap is not evidence the medicines fail. It mostly means the conversation never happens — most people are simply never offered the option. If you are weighing it at all, you are already doing the uncommon part.

Where this leaves you

No single medication is the right answer for everyone who wants to stop drinking, and any page that hands you one is overselling. What there is: three real tools with three different jobs, two with a stronger evidence base, and a decision that turns on your goal, your health, and your history. Bring the questions above to a clinician who can see the whole picture, and let the fit be individual — because it is.

This page is educational, not medical advice or a prescription. If stopping ever brings on shaking, confusion, or a seizure, treat it as an emergency — call 911 or go to an emergency room. If you feel unsafe with yourself, call or text 988. For confidential treatment referrals, SAMHSA's National Helpline is 1-800-662-HELP.

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