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acamprosate vs galantamine

Side-by-side comparison of acamprosate and galantamine Data from FDA drug databases (Orange Book, NDC Directory, recalls, shortages) covering 20,000+ approved drugs, plus CMS pricing; see our methodology.

Drug Class
acamprosate GABA Analog (Alcohol Dependence)
galantamine Acetylcholinesterase Inhibitor
Type
acamprosate Prescription
galantamine Prescription
Summary
acamprosate

Acamprosate is a medicine that can help you stay away from alcohol if you are alcohol-dependent and have already stopped drinking. It should be used with counseling and support.

galantamine

Galantamine extended-release capsules help treat mild to moderate Alzheimer's disease. It can improve memory and thinking.

What It Treats
acamprosate

Acamprosate helps people who are alcohol-dependent to not drink alcohol. You must have already stopped drinking before you start taking acamprosate. This medicine works best when it is part of a complete treatment plan that includes counseling and support.

galantamine

This medicine treats mild to moderate Alzheimer's disease. Alzheimer's can affect memory, thinking, and behavior. Galantamine may help improve these symptoms.

How It Works
acamprosate

Acamprosate is similar to a natural substance in your brain. It is thought to work by helping to restore the normal balance of brain activity that is changed by long-term alcohol use. This can reduce your craving for alcohol.

galantamine

Galantamine is a cholinesterase inhibitor. It works by increasing the amount of a certain chemical in the brain. This chemical helps nerve cells communicate better.

Common Side Effects
acamprosate
  • Accidental injury
  • Weakness
  • Pain
  • Loss of appetite
  • Diarrhea
galantamine
  • Nausea
  • Vomiting
  • Diarrhea
  • Dizziness
  • Headache
FAERS Reports
acamprosate
  • Low blood pressure 14
  • Weakness 13
  • Condition worsened 13
  • Using the medicine for something it is not approved for 13
  • Sudden kidney damage 12
galantamine
  • Falling 375
  • Problems with thinking 306
  • Difficulty pooping 291
  • Problems with balance 285
  • Low blood pressure 285
Serious Warnings
acamprosate

Acamprosate may increase the risk of suicidal thoughts or actions. Your doctor should watch you for depression or suicidal thoughts. Tell your doctor right away if you have any new or worsening symptoms of depression or suicidal thoughts.

galantamine

Stop taking galantamine right away if you get a skin rash. This medicine can cause serious skin reactions. This medicine can also slow your heart rate or cause fainting.

Pregnancy
acamprosate

Acamprosate may harm your unborn baby. Talk to your doctor if you are pregnant or plan to become pregnant. It is not known if acamprosate passes into breast milk. Talk to your doctor if you are breastfeeding.

galantamine

It is not known if galantamine is safe to take during pregnancy. Animal studies suggest a risk to the fetus. Talk to your doctor if you are pregnant or plan to become pregnant. It is also not known if galantamine passes into breast milk, so talk to your doctor if you are breastfeeding.

Also Compare — Nearby Drugs

How to Read This acamprosate vs galantamine Comparison

acamprosate is classified in the GABA Analog (Alcohol Dependence) drug class, while galantamine sits within the Acetylcholinesterase Inhibitor class. Drugs from different classes work through distinct mechanisms, so a head-to-head comparison illustrates trade-offs rather than equivalence. Both drugs are prescription-only, so a licensed provider must authorize use.

Adverse event totals above are pulled from the FDA's Adverse Event Reporting System (FAERS). For these top-ranked reactions alone, acamprosate has 65 submissions while galantamine has 1,542. Those figures reflect cumulative reporting volume — not per-patient risk — so older, widely dispensed drugs typically look worse on count alone. No direct interaction between these two drugs is listed in our FDA-derived dataset, though co-prescription still warrants pharmacist review. Serious warnings, pregnancy guidance, and contraindications can differ even when indications overlap.

A table cannot substitute for clinical judgment. Effectiveness, tolerability, drug-drug interactions with your other medications, kidney and liver function, pregnancy status, insurance formulary, and price all feed into a decision that only a licensed prescriber can make responsibly. Data here is sourced from FDA Structured Product Labels (SPL) and FAERS, both of which update as manufacturers and clinicians submit new information. This page is for educational purposes only, is not medical advice, and should not be used to self-switch between acamprosate and galantamine — always consult your physician or pharmacist first.

Important: This comparison is for informational purposes only. Drug effects vary between individuals. Always consult your doctor or pharmacist for personalized medical advice.