acamprosate vs clomipramine

PlainMeds reviewed this comparison against our methodology in August 2026. It places FDA and CMS record fields side by side, without recommending either medication.

Side-by-side comparison of acamprosate and clomipramine. 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)
clomipramine Tricyclic Antidepressant (TCA)
Type
acamprosate Prescription
clomipramine 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.

clomipramine

Clomipramine (Anafranil) is a medicine used to treat obsessive-compulsive disorder (OCD). It helps reduce unwanted thoughts and repetitive behaviors.

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.

clomipramine

Clomipramine treats obsessive-compulsive disorder (OCD). OCD causes upsetting thoughts or images that keep coming back. It also causes the need to repeat actions over and over. Clomipramine can help control 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.

clomipramine

Clomipramine is a type of antidepressant. It works by increasing the amount of certain chemicals in the brain. These chemicals help regulate mood and reduce OCD symptoms.

Common Side Effects
acamprosate
  • Accidental injury
  • Weakness
  • Pain
  • Loss of appetite
  • Diarrhea
clomipramine
  • Dry mouth
  • Constipation
  • Nausea
  • Upset stomach
  • Sleepiness
FAERS Reports
acamprosate
  • Hypotension 14
  • Asthenia 13
  • Condition Aggravated 13
  • Acute Kidney Injury 12
  • Coma 12
clomipramine
  • Drug Interaction 225
  • Somnolence 203
  • Fall 202
  • Tremor 185
  • Nausea 173
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.

clomipramine

Antidepressants may increase the risk of suicidal thoughts or actions in children, teens, and young adults. Watch closely for worsening mood or unusual behavior. Clomipramine is only approved for OCD in children.

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.

clomipramine

Tell your doctor if you are pregnant or plan to become pregnant. Clomipramine may harm your unborn baby. It can also pass into breast milk, so talk to your doctor about breastfeeding.

Also Compare, Nearby Drugs

How to Read This acamprosate vs clomipramine Comparison

acamprosate is classified in the GABA Analog (Alcohol Dependence) drug class, while clomipramine sits within the Tricyclic Antidepressant (TCA) 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 64 submissions while clomipramine has 988. 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 represent individual circumstances. Data here is sourced from FDA Structured Product Labels (SPL) and FAERS, both of which update as manufacturers and clinicians submit new information. This registry does not provide medical, treatment, substitution, or medication-change directions for acamprosate or clomipramine.

Registry boundary: This comparison displays source-record fields and does not provide individualized medical direction.