Does Furosemide Interact With Methotrexate?
Methotrexate and other drugs that, like furosemide, undergo significant renal tubular secretion may reduce the effect of furosemide.
Severity: Moderate
Severity basis: drug interactions section (keywords: may reduce). Combining Furosemide (Loop diuretic) and Methotrexate (Antimetabolite DMARD) is classified as a moderate interaction.
What to Do
Use this combination with caution. Your prescriber may monitor you more closely or adjust doses.
From the FDA Label
Methotrexate and other drugs that, like furosemide, undergo significant renal tubular secretion may reduce the effect of furosemide.
Source: FDA structured product labeling (set_id 01a5f094-b473-4e46-9e61-69d5ec6dd766).
Check these against your full medication list in our free Interaction Checker
This information is educational — not medical advice.
This page is provided for general educational purposes and summarizes publicly available data from sources such as the U.S. Food & Drug Administration. It is not a substitute for the judgment of a licensed clinician and should not be used to start, stop, or change any medication. It may be incomplete or out of date, and individual circumstances vary. Always talk with your prescriber or pharmacist about your specific medications and health conditions. If you think you may have a medical emergency, call 911.
Other Furosemide Interactions
- Furosemide + Cyclosporine(moderate)
- Furosemide + Indomethacin(moderate)
- Furosemide + Phenytoin(moderate)
- Furosemide + Sucralfate(moderate)
- Furosemide + Aspirin(minor)
- Furosemide + Atenolol(minor)
- Furosemide + Celecoxib(minor)
- Furosemide + Levothyroxine(minor)
- Furosemide + Liothyronine(minor)
- Furosemide + Lithium(minor)
- Furosemide + Meloxicam(minor)
- Furosemide + Naproxen(minor)
- Furosemide + Potassium Chloride(minor)
- Furosemide + Ramipril(minor)
- Furosemide + Risperidone(minor)
- Furosemide + Tamsulosin(minor)
Other Methotrexate Interactions
- Methotrexate + Aspirin(major)
- Methotrexate + Folic Acid(major)
- Methotrexate + Phenytoin(major)
- Methotrexate + Adalimumab(moderate)
- Methotrexate + Celecoxib(moderate)
- Methotrexate + Hydroxychloroquine(moderate)
- Methotrexate + Indomethacin(moderate)
- Methotrexate + Meloxicam(moderate)
- Methotrexate + Naproxen(moderate)
- Methotrexate + Cyclosporine(minor)
- Methotrexate + Lansoprazole(minor)
- Methotrexate + Ondansetron(minor)
- Methotrexate + Pantoprazole(minor)