acamprosate vs entacapone
Side-by-side comparison of acamprosate and entacapone Data from FDA drug databases (Orange Book, NDC Directory, recalls, shortages) covering 20,000+ approved drugs, plus CMS pricing; see our methodology.
Campral
Comtan
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.
Entacapone is a medicine that helps people with Parkinson's disease. It is always used with levodopa and carbidopa to help reduce "wearing-off" symptoms.
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.
Entacapone is used to treat Parkinson's disease. It helps when your medicine (levodopa and carbidopa) starts to wear off before your next dose. This medicine is not for people with Parkinson's who do not have "wearing-off" symptoms.
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.
Entacapone belongs to a class of drugs called COMT inhibitors. It works by blocking an enzyme called COMT, which breaks down levodopa in the body. By blocking COMT, entacapone helps levodopa work longer and more effectively.
- • Accidental injury
- • Weakness
- • Pain
- • Loss of appetite
- • Diarrhea
- • Uncontrolled movements
- • Urine discoloration
- • Diarrhea
- • Nausea
- • Excessive movements
- Low blood pressure 14
- Weakness 13
- Condition worsened 13
- Using the medicine for something it is not approved for 13
- Sudden kidney damage 12
- Uncontrolled movements 461
- Seeing or hearing things that are not there 459
- Falling down 443
- Medicine not working 332
- Death 318
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.
If you suddenly stop taking entacapone or quickly lower the dose, your Parkinson's symptoms may get worse. This could also cause a high fever and confusion. If you stop taking entacapone, your doctor should watch you closely and adjust your other medicines as needed. It is best to slowly lower the dose before stopping completely.
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.
Tell your doctor if you are pregnant or plan to become pregnant. It is not known if entacapone will harm your unborn baby. Talk to your doctor about the risks and benefits of taking entacapone while breastfeeding.
How to Read This acamprosate vs entacapone Comparison
acamprosate is classified in the GABA Analog (Alcohol Dependence) drug class, while entacapone sits within the COMT 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 entacapone has 2,013. 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 entacapone — 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.