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clozapine vs moxifloxacin

Side-by-side comparison of clozapine and moxifloxacin. 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

Drugs that cause QT prolongation include: specific antipsychotics (e.g., ziprasidone, iloperidone, chlorpromazine, thioridazine, mesoridazine, droperidol, and pimozide), specific antibiotics (e.g., erythromycin, gatifloxacin, moxifloxacin, sparfloxacin), Class 1A antiarrhythmics (e.g., quinidine, procainamide) or Class III antiarrhythmics (e.g., amiodarone, sotalol), and others (e.g., pentamidine, levomethadyl acetate, methadone, halofantrine, mefloquine, dolasetron mesylate, probucol or tacrolimus) [see Warnings and Precautions (5.9) ] .

Recommendation: Your doctor should monitor your heart rhythm closely if you must take both of these medications at the same time.

Drug Class
clozapine Atypical Antipsychotic
moxifloxacin Fluoroquinolone Antibiotic
Type
clozapine Prescription
moxifloxacin Prescription
Summary
clozapine

Versacloz is a medicine used to treat severe schizophrenia when other medicines have not worked. It can also help lower the risk of suicidal behavior in people with schizophrenia or schizoaffective disorder.

moxifloxacin

Moxifloxacin is an antibiotic that fights bacteria in your body. It is used to treat different types of infections.

What It Treats
clozapine

Versacloz is used to treat schizophrenia in people who haven't responded well to other antipsychotic medicines. Schizophrenia is a mental illness that can cause hallucinations, delusions, and disorganized thinking. Versacloz can also help lower the risk of repeated suicidal behavior in people with schizophrenia or schizoaffective disorder who are at high risk.

moxifloxacin

Moxifloxacin treats infections like pneumonia, skin infections, and infections in your stomach area. It can also treat sinus infections, bronchitis, and plague. This medicine should only be used to treat infections that are proven or very likely to be caused by bacteria that it can kill.

How It Works
clozapine

Versacloz works by affecting certain chemicals in the brain. These chemicals, like dopamine and serotonin, are involved in mood, behavior, and thinking. By changing the levels of these chemicals, Versacloz can help reduce symptoms of schizophrenia and lower the risk of suicidal behavior.

moxifloxacin

Moxifloxacin belongs to a class of drugs called fluoroquinolones. It works by stopping bacteria from multiplying. This helps your body fight off the infection.

Common Side Effects
clozapine
  • Feeling sleepy
  • Dizziness
  • Headache
  • Shaking
  • Fast heart rate
moxifloxacin
  • Nausea
  • Diarrhea
  • Headache
  • Dizziness
FAERS Reports
clozapine
  • Low white blood cell count 18,655
  • Needing to stay in the hospital 12,101
  • Death 11,398
  • A mental disorder that affects how a person thinks, feels, and behaves 4,547
  • High white blood cell count 4,446
moxifloxacin
  • Dyspnoea 1,224
  • Pneumonia 1,142
  • Vomiting 1,101
  • Drug Hypersensitivity 1,073
  • Asthma 910
Serious Warnings
clozapine

Versacloz can cause several serious side effects: * **Severe Neutropenia:** This means a dangerously low white blood cell count, which increases your risk of infection. You will need regular blood tests to check your white blood cell count. * **Orthostatic Hypotension, Bradycardia, and Syncope:** This means low blood pressure when standing up, slow heart rate, and fainting. These are most likely when you first start taking Versacloz or when the dose is increased. * **Seizures:** Versacloz can increase your risk of seizures, especially at higher doses. * **Myocarditis, Pericarditis, and Cardiomyopathy:** These are serious heart problems that can be fatal. Tell your doctor right away if you have chest pain, shortness of breath, or other heart-related symptoms. * **Increased Mortality in Elderly Patients with Dementia-Related Psychosis:** Elderly patients with dementia who take antipsychotic medicines like Versacloz have an increased risk of death.

moxifloxacin

Moxifloxacin can cause serious side effects, even if they don't happen to everyone. These include tendon problems, nerve damage, and central nervous system problems. If you have myasthenia gravis, moxifloxacin can make your muscle weakness worse. If you experience any of these serious side effects, stop taking moxifloxacin immediately and talk to your doctor. Because of these risks, moxifloxacin should only be used when other treatment options are not available for sinus infections or bronchitis.

Pregnancy
clozapine

Tell your doctor if you are pregnant or plan to become pregnant. Babies born to mothers who take Versacloz in the third trimester may have withdrawal symptoms or other problems after birth. There is a pregnancy registry for women who take atypical antipsychotics like Versacloz.

moxifloxacin

Talk to your doctor if you are pregnant or plan to become pregnant. Moxifloxacin may harm your unborn baby. It is not known if moxifloxacin passes into breast milk, so talk to your doctor if you are breastfeeding.

Also Compare, Nearby Drugs

How to Read This clozapine vs moxifloxacin Comparison

clozapine is classified in the Atypical Antipsychotic drug class, while moxifloxacin sits within the Fluoroquinolone Antibiotic 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, clozapine has 51,147 submissions while moxifloxacin has 5,450. 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 both of these medications can affect the electrical rhythm of your heart, which may increase the risk of a serious heart problem.. 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 clozapine and moxifloxacin - 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.