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ciprofloxacin vs clozapine

Side-by-side comparison of ciprofloxacin and clozapine. 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

7 DRUG INTERACTIONS Concomitant use of Strong CYP1A2 Inhibitors : Reduce VERSACLOZ dose to one third when coadministered with strong CYP1A2 inhibitors (e.g., fluvoxamine, ciprofloxacin, enoxacin) ( 2.7 , 7.1 ). Reduce the VERSACLOZ dose to one third of the original dose when VERSACLOZ is coadministered with strong CYP1A2 inhibitors (e.g., fluvoxamine, ciprofloxacin, or enoxacin).

Recommendation: Your doctor should reduce your clozapine dose to one-third of your normal dose when you are taking ciprofloxacin.

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

Ciprofloxacin eye drops are an antibiotic medicine. They treat bacterial infections in the eye.

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.

What It Treats
ciprofloxacin

These eye drops treat corneal ulcers and conjunctivitis (pink eye) caused by certain bacteria. Corneal ulcers are open sores on the eye. Conjunctivitis is an infection that makes the eye red and swollen.

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.

How It Works
ciprofloxacin

Ciprofloxacin is a fluoroquinolone antibiotic. It stops bacteria from growing and multiplying. This helps your body fight off the infection.

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.

Common Side Effects
ciprofloxacin
  • Burning or discomfort in the eye
  • White crystal-like build-up in the eye
clozapine
  • Feeling sleepy
  • Dizziness
  • Headache
  • Shaking
  • Fast heart rate
FAERS Reports
ciprofloxacin
  • Allergic reaction to the medicine 5,673
  • Pain 5,586
  • Tiredness 5,504
  • Diarrhea 5,328
  • Feeling sick to your stomach 5,300
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
Serious Warnings
ciprofloxacin

Do not inject this medicine into your eye. Some people have had very bad allergic reactions, even after the first dose. Get emergency help right away if you have trouble breathing, pass out, or have swelling of the face, throat, or tongue.

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.

Pregnancy
ciprofloxacin

Tell your doctor if you are pregnant, plan to become pregnant, or are breastfeeding. It is not known if ciprofloxacin eye drops will harm an unborn baby. It is also not known if ciprofloxacin passes into breast milk.

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.

Also Compare, Nearby Drugs

How to Read This ciprofloxacin vs clozapine Comparison

ciprofloxacin is classified in the Fluoroquinolone Antibiotic drug class, while clozapine 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, ciprofloxacin has 27,391 submissions while clozapine has 51,147. 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 ciprofloxacin is a strong blocker of the enzyme that clears clozapine, which can cause clozapine levels to become very high.. 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 ciprofloxacin and clozapine - 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.