fluconazole vs losartan

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Side-by-side comparison of fluconazole and losartan. 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

Losartan : Fluconazole inhibits the metabolism of losartan to its active metabolite (E-31 74) which is responsible for most of the angiotensin II-receptor antagonism which occurs during treatment with losartan.

Drug Class
fluconazole Azole Antifungal
losartan Angiotensin II Receptor Blocker (ARB)
Type
fluconazole Prescription
losartan Prescription
Summary
fluconazole

Fluconazole is an antifungal medicine. It is used to treat infections caused by fungus.

losartan

Losartan is a medicine that lowers blood pressure. It can also help prevent strokes in some people with high blood pressure and an enlarged heart.

What It Treats
fluconazole

Fluconazole treats vaginal yeast infections. It also treats yeast infections in the mouth and esophagus. Fluconazole can also treat urinary tract infections, peritonitis, systemic Candida infections, and pneumonia. It can also treat cryptococcal meningitis. Fluconazole can also prevent candidiasis in patients undergoing bone marrow transplantation.

losartan

Losartan is used to treat high blood pressure in adults and children over 6 years old. Lowering blood pressure reduces the risk of strokes and heart attacks. It is also used to treat kidney problems in people with type 2 diabetes and high blood pressure. Losartan can also reduce the risk of stroke in patients with high blood pressure and an enlarged left ventricle of the heart.

How It Works
fluconazole

Fluconazole works by stopping the growth of fungi. It blocks the fungus from producing a substance it needs to grow. This helps to clear up the infection.

losartan

Losartan blocks a substance in your body that tightens blood vessels. This helps blood vessels relax, which lowers blood pressure. It also helps the kidneys work better in people with diabetes.

Common Side Effects
fluconazole
  • Headache
  • Nausea
  • Abdominal pain
losartan
  • Dizziness
  • Upper respiratory infection
  • Nasal congestion
  • Back pain
FAERS Reports
fluconazole
  • Pyrexia 4,121
  • Nausea 3,697
  • Diarrhoea 3,538
  • Fatigue 3,151
  • Pain 3,123
losartan
  • Fatigue 11,852
  • Diarrhoea 9,870
  • Nausea 9,207
  • Dyspnoea 8,439
  • Dizziness 7,999
Serious Warnings
fluconazole

Coadministration of other drugs known to prolong the QT interval and which are metabolized via the enzyme CYP3A4 such as erythromycin, pimozide, and quinidine are contraindicated in patients receiving fluconazole.

losartan

Losartan can harm your unborn baby, even causing death. If you are pregnant or plan to become pregnant, tell your doctor right away. Stop taking losartan as soon as you know you are pregnant.

Pregnancy
fluconazole

Tell your doctor if you are pregnant or plan to become pregnant. Fluconazole may not be safe for your baby. Talk to your doctor about breastfeeding while taking fluconazole.

losartan

Do not take losartan if you are pregnant. It can cause serious harm or death to the developing fetus. If you are breastfeeding, talk to your doctor about whether losartan is right for you.

Also Compare, Nearby Drugs

How to Read This fluconazole vs losartan Comparison

fluconazole is classified in the Azole Antifungal drug class, while losartan sits within the Angiotensin II Receptor Blocker (ARB) 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, fluconazole has 17,630 submissions while losartan has 47,367. 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 fluconazole prevents losartan from changing into its active form that helps lower blood pressure. this can make the blood pressure medicine work less effectively.. 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 fluconazole or losartan.

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