haloperidol vs pimozide
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 haloperidol and pimozide. Data from FDA drug databases (Orange Book, NDC Directory, recalls, shortages) covering 20,000+ approved drugs, plus CMS pricing; see our methodology.
Haldol
Orap
Haloperidol is a medicine used to treat mental disorders. It can help reduce symptoms like hallucinations and confused thinking.
Pimozide (Orap) is a medicine that helps control tics in people with Tourette's Disorder. It works by affecting certain chemicals in the brain.
Haloperidol is used to manage symptoms of psychotic disorders. It can also control tics and vocal sounds in people with Tourette's Disorder. In children, it can treat severe behavior problems like being combative or overly excitable when other treatments haven't worked. It can also be used short-term for hyperactive children with impulsivity and difficulty paying attention.
Pimozide is used to treat motor and phonic tics in people with Tourette's Disorder. It is for people who have not had success with other treatments. This medicine is not for tics that are mild or just annoying. It is meant for people whose tics greatly affect their daily life.
Haloperidol works by changing the effect of certain natural chemicals in the brain. These chemicals, called neurotransmitters, affect mood and behavior. By blocking dopamine, haloperidol helps to reduce psychotic symptoms.
Pimozide belongs to a class of drugs called antipsychotics. It works by blocking dopamine, a chemical in the brain. By blocking dopamine, pimozide helps to reduce tics.
- • Muscle stiffness
- • Shaking
- • Slow movement
- • Restlessness
- • Changes in heart rhythm
- • Parkinson-like symptoms (tremors, stiffness)
- • Restlessness
- • Muscle stiffness
- • Drowsiness
- Drug Interaction 1,663
- Neuroleptic Malignant Syndrome 1,577
- Weight Increased 1,216
- Extrapyramidal Disorder 1,201
- Toxicity To Various Agents 999
- Drug Interaction 76
- Parkinsonism 42
- Weight Increased 37
- Somnolence 33
- Hypotension 29
Haloperidol may increase the risk of death in elderly patients with dementia-related psychosis. Haloperidol is not approved to treat dementia-related psychosis.
Pimozide can cause changes in your heart rhythm (QT prolongation). This can lead to serious heart problems. You should have an ECG (heart test) before starting pimozide and regularly during treatment. Do not take pimozide with other medicines that can also affect your heart rhythm.
Tell your doctor if you are pregnant or plan to become pregnant. Haloperidol may cause side effects in newborns if taken during pregnancy. Talk to your doctor about the risks and benefits of taking haloperidol while breastfeeding.
Tell your doctor if you are pregnant or plan to become pregnant. It is not known if pimozide will harm your unborn baby. Talk to your doctor about the risks and benefits of taking pimozide during pregnancy and breastfeeding.
How to Read This haloperidol vs pimozide Comparison
haloperidol is classified in the Typical Antipsychotic drug class, while pimozide sits within the Typical Antipsychotic class. Because both drugs share the same classification, they are often considered interchangeable in theory, but clinical outcomes rarely track that cleanly. 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, haloperidol has 6,656 submissions while pimozide has 217. 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 haloperidol or pimozide.
Registry boundary: This comparison displays source-record fields and does not provide individualized medical direction.