acamprosate vs paliperidone
Side-by-side comparison of acamprosate and paliperidone Data from FDA drug databases (Orange Book, NDC Directory, recalls, shortages) covering 20,000+ approved drugs, plus CMS pricing; see our methodology.
Campral
Invega
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.
Paliperidone extended-release tablets, also known as Invega, are a type of antipsychotic medicine. It helps manage symptoms of certain mental disorders.
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.
This medicine is used to treat schizophrenia in adults and teens (12-17 years old). It can also treat schizoaffective disorder in adults, either alone or with other medicines like mood stabilizers or antidepressants. Schizophrenia can cause hallucinations, delusions, and confused thinking. Schizoaffective disorder includes symptoms of both schizophrenia and mood disorders.
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.
Paliperidone affects certain chemicals in the brain. These chemicals, like dopamine, can become unbalanced in people with schizophrenia and schizoaffective disorder. By acting on these chemicals, paliperidone helps to reduce symptoms.
- • Accidental injury
- • Weakness
- • Pain
- • Loss of appetite
- • Diarrhea
- • Extrapyramidal symptoms (movement problems)
- • Fast heart rate
- • Feeling restless and unable to sit still
- • Sleepiness
- • Indigestion
- Low blood pressure 14
- Weakness 13
- Condition worsened 13
- Using the medicine for something it is not approved for 13
- Sudden kidney damage 12
- Physical harm or wound 4,330
- Enlargement of male breast tissue 3,664
- Medication not working 1,729
- Unusual increase in weight 1,660
- Using medication for a non-approved purpose 1,501
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.
This medicine has a boxed warning. It may increase the risk of death in elderly patients with dementia-related psychosis. Paliperidone is not approved to treat this condition.
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.
If you are pregnant or plan to become pregnant, talk to your doctor. Babies born to mothers who use this medicine in the last 3 months of pregnancy may have withdrawal symptoms or movement problems after birth. There is a pregnancy registry to monitor outcomes in women exposed to atypical antipsychotics during pregnancy. You can contact the registry at 1-866-961-2388.
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How to Read This acamprosate vs paliperidone Comparison
acamprosate is classified in the GABA Analog (Alcohol Dependence) drug class, while paliperidone sits within the Atypical Antipsychotic 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 paliperidone has 12,884. 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 paliperidone — 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.