HomeLosartan Potassium And HydrochlorothiazideLosartan Potassium And Hydrochlorothiazide + Ketoconazole

Does Losartan Potassium And Hydrochlorothiazide Interact with Ketoconazole?

Losartan Potassium And Hydrochlorothiazide and Ketoconazole have a minor drug interaction according to U.S. FDA drug labeling data. Ketoconazole did not affect conversion of losartan to active metabolite after intravenous administration. No clinically significant interaction. Patients taking both medications should consult their healthcare provider before starting, stopping, or changing the dosage of either drug. This information is based on official FDA drug labeling sourced from OpenFDA and the NIH National Library of Medicine.

Severity
Minor
Losartan Potassium And Hydrochlorothiazide Class
Thiazide Diuretic
Ketoconazole Class
Azole Antifungal
Management
Generally manageable
Data Source
U.S. FDA via OpenFDA

What To Tell Your Doctor or Pharmacist

If you are taking Losartan Potassium And Hydrochlorothiazide and your doctor is considering prescribing Ketoconazole (or vice versa), make sure to:

  • Inform your doctor and pharmacist of all current medications, including over-the-counter drugs and supplements
  • Ask whether the benefits of combining these medications outweigh the risks for your specific situation
  • Ask what symptoms to watch for that would indicate the interaction is causing problems
  • Never stop or change either medication without first consulting your healthcare provider
💊 Losartan Potassium And Hydrochlorothiazide(Hyzaar)+💊 Ketoconazole(T8 Keto Flush)

Severity & Interaction Details

minor
Generally safe — minor interaction
Low clinical significance. Routine awareness is usually sufficient.
Severity scale
MinorContra
On record
Yes
Drug A class
Thiazide Diuretic
Drug B class
Azole Antifungal
Source
NLP:losartan potassium and hydrochlorothiazide

What this means in plain English

Ketoconazole did not affect conversion of losartan to active metabolite after intravenous administration. No clinically significant interaction.

About Losartan Potassium And Hydrochlorothiazide and Ketoconazole

Losartan Potassium And Hydrochlorothiazide is a Thiazide Diuretic, while Ketoconazole is an Azole Antifungal. You may recognize them by the brand names Hyzaar and Ketodan. Both medications are taken by mouth. Both Losartan Potassium And Hydrochlorothiazide and Ketoconazole carry an FDA boxed warning — the agency's most serious safety designation.

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Data integrity: Every interaction shown is extracted directly from official U.S. FDA drug labeling via openFDA and the U.S. National Library of Medicine (NIH) — no interactions are invented, inferred, or manually edited. Maintained by CheckDrugInteractions.com. See our methodology or report a correction at support@checkdruginteractions.com.

Data sourced from U.S. FDA drug labeling via openFDA and the NIH National Library of Medicine, supplemented with a small number of well-established interactions from curated clinical references. For informational purposes only. Always consult your pharmacist or physician.