Quick Answer: Choosing between acamprosate vs naltrexone depends on your recovery goal and medical history. Acamprosate is often used after someone has stopped drinking to help maintain abstinence, while naltrexone may help reduce cravings, heavy drinking, and the rewarding effects of alcohol. Acamprosate is usually taken three times daily, while naltrexone may be taken once daily or as a monthly injection. The right alcohol craving medication depends on drinking status, opioid use, liver health, kidney health, side effects, and medical guidance.
For a caring and confidential conversation about your treatment options, contact us today.
Next Steps
If you’re struggling with addiction, you don’t have to face it alone. At Casa Capri, we offer expert, women-centered care in a supportive and nurturing space—designed by women, for women. Our team is here to help you heal with purpose and connection.
Call our admissions team for a free, confidential chat—we’ll even check your insurance and estimate any costs upfront.
What Is the Main Difference Between Acamprosate and Naltrexone?
The main difference between acamprosate and naltrexone is the recovery pattern each medication is often used to support. Acamprosate is commonly used after a person has stopped drinking to help maintain abstinence, while naltrexone is often used to reduce cravings, heavy drinking, and the rewarding effects of alcohol.
Both medications are used for alcohol use disorder (AUD), and both work best as part of a larger treatment plan that may include therapy, relapse prevention, support groups, and care for co-occurring mental health concerns. Neither one is a cure on its own, and for women in particular, the right fit often depends as much on health history and daily routine as on the drinking itself.
Acamprosate vs Naltrexone: At a Glance
Deciding between acamprosate vs naltrexone isn’t about which medication is universally better. The better question is which medication fits the person, the recovery goal, and the medical context.
Comparison Point | Acamprosate | Naltrexone |
Main recovery goal | Often used to help maintain abstinence after stopping alcohol | Often used to reduce cravings, heavy drinking, and alcohol reward |
Common timing | Usually started after alcohol withdrawal has passed | May be considered when a person is not using opioids and has been cleared by a medical professional |
How it works | Thought to help restore brain chemical balance disrupted by chronic alcohol use | Blocks opioid receptors involved in alcohol reward and cravings |
Form | Oral tablets (three times daily) | Oral tablet (once daily) or extended-release injection (monthly) |
Key safety issue | Kidney function matters | Opioid use and liver health matter |
Best fit may depend on | Abstinence goal, kidney health, ability to take medication multiple times daily | Craving pattern, heavy drinking risk, opioid status, liver health, medication preference |
How Does Acamprosate Help with Alcohol Use Disorder?
Taking acamprosate for alcohol use disorder is thought to help the brain regain balance after chronic alcohol use has disrupted neurotransmitter activity. It may be especially helpful for women who have already stopped drinking and want support in maintaining abstinence.
Acamprosate is often discussed after detox, or once most acute withdrawal symptoms have resolved. You can read more in our guide on the signs of alcohol withdrawal. It doesn’t treat withdrawal itself, nor does it create an unpleasant reaction if someone drinks. One practical trade-off is the schedule: acamprosate is usually taken three times a day, which some women find harder to keep up with than naltrexone’s once-daily tablet or monthly injection.
For women who want full abstinence, acamprosate may fit the recovery goal well. It may also be considered when opioid use makes naltrexone unsafe, though your kidney function must be reviewed before prescribing.
How Does Naltrexone Help with Alcohol Cravings?
Naltrexone helps with alcohol cravings by blocking opioid receptors involved in alcohol reward. For some people, this can make drinking feel less reinforcing and reduce the urge to keep drinking.
Naltrexone may be a better fit for women whose main concern is heavy drinking, strong cravings, or returning to alcohol after a first drink. It’s available as a daily oral medication and as an extended-release injection given by a healthcare professional, which may be easier for women who struggle with daily medication routines.
Because naltrexone blocks opioid receptors, it’s not appropriate for someone currently using opioids or who may need opioid pain medication. Liver health, current medications, and medical history also need to be reviewed before starting it.
Which Medication Fits Abstinence, and Which Fits Reduced Heavy Drinking?
Your recovery goal is the clearest guide. Acamprosate is often better at preventing that first drink, helping people stay fully abstinent, while naltrexone is better at keeping a slip from turning into a full return to heavy drinking. Researchers who compared the two concluded that neither is superior as a rule and that the right choice depends on the therapeutic goal.
So a medication conversation should go beyond symptoms. A provider may ask you questions like:
- Have you already stopped drinking?
- Are heavy drinking episodes still happening?
- Do cravings hit before or after the first drink?
- Is your goal full abstinence or reducing how much you drink?
What Side Effects Should Women Know Before Comparing These Medications?
Acamprosate and naltrexone can both cause side effects, and those side effects can affect whether a medication feels realistic to continue. Most side effects aren’t dangerous, but they still matter because a medication only helps if you can take it consistently.
Acamprosate side effects can include diarrhea, nausea, gas, appetite changes, dizziness, anxiety, sleep changes, or low mood. Naltrexone side effects can include nausea, headache, dizziness, tiredness, sleep changes, anxiety, or appetite changes.
Women should also be honest about mood changes, unresolved trauma, eating patterns, pregnancy concerns, breastfeeding, and other medications. Those factors don’t automatically rule out medication, but they can shape what a provider recommends and how closely symptoms should be monitored.
When Do Opioids, Liver Health, or Kidney Health Change the Decision?
Opioid use, liver health, and kidney health can change the decision between naltrexone vs. acamprosate. These are safety factors, rather than ordinary side effect concerns.
Naltrexone shouldn’t be started if someone is currently using opioids or is physically dependent on opioids, because it can trigger sudden withdrawal and block opioid pain medication. This includes some prescription pain medications, which is why women should tell their provider about recent opioid use, upcoming surgery, or pain treatment needs.
Acamprosate requires attention to kidney function, while naltrexone requires attention to liver health. A provider may review your labs, current medications, pregnancy status, mental health symptoms, and other substance use before deciding what is safest for you.
Can You Take Alcohol Craving Medication Without Therapy?
Alcohol craving medication can help, but it usually works best with therapy, structure, and recovery support. Acamprosate and naltrexone can reduce biological pressure to drink, but they don’t replace the deeper work of understanding triggers, trauma, stress, relationships, and relapse patterns.
For many women, cravings aren’t only physical. They may appear after conflict, loneliness, shame, anxiety, grief, caregiving pressure, or memories that feel hard to sit with. Medication may make cravings more manageable, while therapy helps build new ways to respond.
A complete alcohol recovery plan may include individual therapy, group support, relapse prevention, family support, psychiatric care, and dual diagnosis treatment when anxiety, depression, trauma, or other mental health concerns are involved.
How Should Women Talk to a Provider About Alcohol Craving Medication?
Women should talk to a provider honestly about their drinking patterns, cravings, withdrawal symptoms, other substance use, current medications, medical history, mental health symptoms, and recovery goals. The safest medication choice depends on the whole picture.
It can help to prepare for the conversation by writing down:
- How often you drink and how much
- Whether you have tried to stop or cut back
- Whether you have withdrawal symptoms
- Whether you use opioids or may need opioid pain medication
- Whether you have liver, kidney, pregnancy, or mental health concerns
- Whether your goal is abstinence or reduced drinking, or you’re unsure
A provider should never shame you for needing help. Alcohol craving medication is one tool for treating alcohol use disorder, and asking about it can be a practical, responsible step toward recovery. You can contact our team today for a confidential conversation.
Alcohol Addiction Support Designed for Women
We help women struggling with alcohol and drug addiction through compassionate, women-centered treatment in Orange County. Our care is designed by women, for women, with support for substance use, co-occurring mental health concerns, trauma, and the real-life pressures that can make recovery feel complicated.
If you’re comparing acamprosate vs naltrexone, our team can help you think through the bigger recovery picture. While you should make any medication decisions with a licensed prescriber, treatment can help you understand cravings, withdrawal concerns, relapse patterns, mental health needs, and the level of care that may support long-term healing.
To take a step toward supportive and compassionate care, contact us today.
Next Steps
If you’re struggling with addiction, you don’t have to face it alone. At Casa Capri, we offer expert, women-centered care in a supportive and nurturing space—designed by women, for women. Our team is here to help you heal with purpose and connection.
Call our admissions team for a free, confidential chat—we’ll even check your insurance and estimate any costs upfront.
FAQs About Acamprosate vs Naltrexone
How long do you need to take acamprosate or naltrexone?
There is no single answer, and the length depends on your progress, goals, and how you respond. Many people take these medications for several months to a year or longer while building other recovery supports, and a prescriber regularly reviews whether to continue, adjust, or stop. Stopping is a medical decision, not something to do on your own.
Can acamprosate and naltrexone be taken together?
A medical professional may advise you to combine medications for alcohol use disorder treatment, but you shouldn’t make that decision yourself. Combining medications depends on your medical history, side effects, other medications, liver and kidney health, and recovery plan.
Do these medications cause weight gain or affect hormones?
Neither acamprosate nor naltrexone is known for causing significant weight gain, though both can affect appetite, and some women notice nausea or digestive changes early on. If you have concerns about hormones, pregnancy, or breastfeeding, raise them directly with your doctor, since those factors can influence which medication they recommend.
What if one medication does not work for me?
It’s common to adjust course. If the first medication doesn’t help enough or causes side effects you can’t tolerate, a provider may switch you to the other, combine approaches, or consider other options used for alcohol use disorder. Not responding to one medication doesn’t mean another medication can’t help you.
Can you drink alcohol while taking these medications?
With naltrexone, drinking isn’t dangerous, but it is meant to make alcohol feel less rewarding, so some women drink less while taking it. Acamprosate is designed to support women who have already stopped, and it doesn’t cause a bad reaction if you drink, though drinking can work against the goal of staying abstinent. Either way, being honest with your provider about any drinking helps them adjust your plan.
Can Casa Capri help me decide which alcohol medication is right?
Casa Capri can help women understand alcohol use, cravings, treatment options, and the support needed around medication. The final medication decision should come from a licensed prescriber, but our team can help you connect medication questions to a fuller recovery plan.
