Yes, there are several pills specifically designed to help people stop or cut back on drinking. The FDA has approved three medications for alcohol use disorder: naltrexone, acamprosate, and disulfiram. Each works differently, and a few additional medications prescribed off-label also show strong evidence. These aren’t miracle cures on their own, but they meaningfully reduce cravings, drinking days, and the risk of relapse when combined with some form of support.
Naltrexone: Blocks the Buzz From Alcohol
Naltrexone is the most widely discussed medication for problem drinking, and for good reason. It works by blocking the receptors in your brain that produce the pleasurable “buzz” from alcohol. When those receptors are blocked, drinking simply feels less rewarding. Over time, this can weaken the learned association between alcohol and pleasure, gradually reducing cravings.
The oral pill is typically taken once a day at 50 mg. There’s also a monthly injectable version called Vivitrol (380 mg), which eliminates the need to remember a daily pill. Adherence is a real issue with the oral form: research on pharmacy data shows that a large proportion of people who fill a first prescription never come back for a refill, with one study finding a refill rate of just 14.2%. The injectable version performs significantly better, with nearly 60% of patients in a pilot study returning for their second dose.
One important approach called the Sinclair Method uses naltrexone differently. Instead of taking it every day, you take it one hour before drinking. The idea is that by consistently blocking alcohol’s reward signal, the desire to drink gradually goes extinct. In clinical studies by John Sinclair, 78% of participants reached this “extinction” point after several months. People using this method often report having just one or two drinks at occasions where they’d normally drink much more. The catch: naltrexone’s effects wear off after several hours, and if someone drinks enough, they can push past the blocking effect and feel the buzz again.
Naltrexone is not safe for anyone currently using opioids. It blocks the same receptors that opioid painkillers act on, meaning it can trigger severe withdrawal in someone who is opioid-dependent. Opioids need to be out of your system for at least seven days before starting naltrexone. It’s also contraindicated in acute hepatitis or liver failure, though it can be prescribed to people with stable, compensated liver disease.
Acamprosate: Calms the Brain After Quitting
Acamprosate works on a completely different system. Chronic heavy drinking throws off the balance between excitatory and calming signals in your brain. When you stop drinking, the excitatory side stays ramped up, creating anxiety, restlessness, and discomfort that make relapse tempting. Acamprosate helps restore that balance by modulating the brain’s glutamate system.
This medication is most effective for people who have already stopped drinking and want to stay sober. It doesn’t reduce cravings the way naltrexone does, and it won’t make you feel sick if you drink. Instead, it eases the neurological discomfort of early sobriety, making it easier to maintain abstinence. The main drawback is the dosing schedule: two pills, three times a day. It’s also not an option for people with severe kidney problems, since the drug is cleared through the kidneys.
Disulfiram: Makes Drinking Unpleasant
Disulfiram, sold under the brand name Antabuse, takes a fundamentally different approach. It doesn’t reduce cravings at all. Instead, it interferes with how your body breaks down alcohol. Normally, your liver converts alcohol into a toxic compound called acetaldehyde and then quickly breaks that down further. Disulfiram blocks that second step, causing acetaldehyde to build up in your system. The result: if you drink while taking disulfiram, you’ll experience flushing, nausea, vomiting, headache, and a rapid heartbeat. The reaction is unpleasant enough that knowing it will happen can serve as a powerful deterrent.
The typical dose is 250 mg once daily, and you need to have been alcohol-free for at least 12 hours before starting it. The medication works best for people who are highly motivated to quit and want an extra layer of accountability. It’s not appropriate for people with cardiovascular disease or psychosis. Because it relies entirely on fear of the reaction rather than changing how your brain responds to alcohol, it tends to work only as long as you keep taking it, and many people eventually stop.
Off-Label Options With Strong Evidence
Beyond the three FDA-approved medications, several other drugs show meaningful benefits for reducing drinking, even though they were originally developed for other conditions.
Gabapentin has the strongest evidence among these off-label options. Originally an anti-seizure medication, it helps with post-acute withdrawal symptoms like anxiety, sleep disruption, and irritability, while also reducing heavy drinking days. A meta-analysis of seven trials found a moderate effect, and it appears to work especially well in people who have more withdrawal symptoms when they stop drinking. It’s typically taken three times a day.
Topiramate, another anti-seizure drug, has moderate evidence showing it decreases the number of drinking days, heavy-drinking days, and drinks per day. A meta-analysis of seven trials found moderate effects on both abstinence and heavy drinking. It’s started at a low dose and gradually increased over several weeks to minimize side effects.
Baclofen, a muscle relaxant, may help people who have already stopped drinking stay abstinent. A 2023 review of 17 clinical trials found it reduced the risk of returning to any drinking and increased the percentage of abstinent days by about 9%. It’s a particularly appealing option for people with liver cirrhosis, since it’s cleared through the kidneys rather than the liver.
Varenicline, better known as a smoking-cessation drug, also shows benefits for alcohol use, especially in people who both drink heavily and smoke. A meta-analysis of 22 trials found it improved abstinent days by about 4 days, modestly reduced drinks per day, and lowered alcohol cravings.
What Taking These Medications Looks Like
Most of these medications are prescribed by a primary care doctor or a psychiatrist, not just addiction specialists. You don’t necessarily need to be in a formal treatment program to get a prescription, though combining medication with some form of counseling or support tends to produce better outcomes.
Treatment length varies. Many people take these medications for several months to a year or longer. There’s no fixed endpoint. The general principle is to continue as long as the medication is helping and the risk of relapse remains significant. Some people take naltrexone or acamprosate for years.
These medications don’t require you to have hit “rock bottom” or to meet a specific threshold of severity. If your drinking has become a pattern you can’t easily break on your own, medication is a reasonable option to discuss with a doctor. They’re also not all-or-nothing tools. Naltrexone in particular can be used with a harm-reduction goal of cutting back rather than complete abstinence, while acamprosate and disulfiram are designed around sobriety.
Who Shouldn’t Take These Medications
Each medication has specific situations where it’s unsafe. Naltrexone is off the table if you’re using opioid painkillers or have acute liver disease. Acamprosate can’t be used with severe kidney impairment. Disulfiram is unsafe for people with heart disease, and obviously, you must be fully committed to not drinking while on it, since even small amounts of alcohol trigger a harsh physical reaction.
Liver health matters across the board. Heavy drinking often damages the liver, so your doctor will likely check liver function before prescribing and may monitor it periodically. For people with cirrhosis, baclofen is often the safest choice since it bypasses the liver entirely.
None of these medications are addictive. Naltrexone, acamprosate, and disulfiram carry no abuse potential, and stopping them doesn’t cause withdrawal. The main risk of stopping is simply that cravings or old drinking patterns return without the pharmacological support.