bromocriptine vs haloperidol
Side-by-side comparison of bromocriptine and haloperidol. Data from FDA drug databases (Orange Book, NDC Directory, recalls, shortages) covering 20,000+ approved drugs, plus CMS pricing; see our methodology.
minor Known Drug Interaction
Compounds in these categories result in a decreased efficacy of bromocriptine mesylate: phenothiazines, haloperidol, metoclopramide, and pimozide.
Recommendation: Talk to your doctor about this combination, as haloperidol can make your bromocriptine treatment less effective.
Cycloset
Haldol
Bromocriptine (Cycloset) is a medicine that acts like dopamine in your body. It is used to treat conditions caused by hormone imbalances, acromegaly, and Parkinson's disease.
Haloperidol is a medicine used to treat mental disorders. It can help reduce symptoms like hallucinations and confused thinking.
This medicine can treat problems caused by too much prolactin, a hormone. These problems include irregular periods, lack of periods, infertility, and low sex hormone levels. It can also treat tumors that produce prolactin. Bromocriptine can also treat acromegaly (a condition where the body produces too much growth hormone) and Parkinson's disease.
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.
Bromocriptine works by acting like dopamine, a natural substance in the brain. It helps to lower the amount of prolactin and growth hormone in your body. In Parkinson's disease, it helps improve motor control.
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.
- • Nausea
- • Headache
- • Dizziness
- • Fatigue
- • Lightheadedness
- • Muscle stiffness
- • Shaking
- • Slow movement
- • Restlessness
- • Changes in heart rhythm
- Feeling sick to your stomach 46
- Pain in your head 35
- Throwing up 33
- Feeling unsteady or lightheaded 31
- Fever 29
- The medicine is interacting with another medicine 1,663
- A rare, life-threatening reaction to the drug 1,577
- Weight gain 1,216
- Movement problems 1,200
- Poisoning from different substances 999
This medicine may cause low blood pressure. Tell your doctor if you have uncontrolled high blood pressure, are sensitive to ergot alkaloids, or are allergic to bromocriptine or any of the ingredients in the tablets. If you are taking this medicine for high prolactin and become pregnant, talk to your doctor about whether to continue taking it.
Haloperidol may increase the risk of death in elderly patients with dementia-related psychosis. Haloperidol is not approved to treat dementia-related psychosis.
If you are taking bromocriptine for high prolactin and become pregnant, talk to your doctor. They will help you decide whether to continue taking it. If you are taking this medicine for acromegaly, prolactinoma, or Parkinson’s disease and become pregnant, discuss with your doctor whether the therapy is still medically necessary.
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.
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How to Read This bromocriptine vs haloperidol Comparison
bromocriptine is classified in the Dopamine Agonist (Diabetes) drug class, while haloperidol sits within the Typical 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, bromocriptine has 174 submissions while haloperidol has 6,655. Those figures reflect cumulative reporting volume, not per-patient risk, so older, widely dispensed drugs typically look worse on count alone. These two drugs have a known minor interaction flagged in FDA labeling, attributed to haloperidol blocks the effects of bromocriptine in the body. this prevents the medicine from working correctly.. 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 bromocriptine and haloperidol - 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.