Fosfomycin

63 interactions 3 explained in plain English

Also sold as: Contepo Monurol® Sachet

About Fosfomycin

Fosfomycin is an antibiotic used to treat infections of the urinary tract. This medication is sometimes prescribed for other uses; ask your doctor or pharmacist for more information. Read the full Fosfomycin drug information page →

Medically reviewed by Dr. Brian Staiger, PharmD, BCPS · Updated Jun 30, 2026 · Editorial policy · Data sources

Sources: FDA prescribing information (Structured Product Labeling), the published literature cited in each entry, DDInter 2.0 (a major open-access drug-interaction database), and legacy DrugBank interaction data distributed by the NIH's RxNav service (decommissioned in 2024) — analyzed and reviewed by our pharmacist team. How we build this library →

Most serious with: Disopyramide Dolasetron Injection Degarelix Injection Oxaliplatin Injection Anagrelide Moxifloxacin Ophthalmic

62 Major 1 Moderate

All (63) Major (62) Moderate (1)

Major

Fosfomycin Amitriptyline Elavil Explained An increased risk of QT interval prolongation Details Fosfomycin Sertraline Explained An increased risk of QT interval prolongation Details Fosfomycin Buprenorphine Belbuca Explained An increased risk of QT interval prolongation Details Fosfomycin Amisulpride Injection Barhemsys An increased risk of QT interval prolongation Details Fosfomycin Arsenic Trioxide Trisenox An increased risk of QT interval prolongation Details Fosfomycin Aripiprazole Injection Abilify An increased risk of QT interval prolongation Details Fosfomycin Arsenic Trioxide Injection Trisenox An increased risk of QT interval prolongation Details Fosfomycin Asenapine Transdermal Patch Secuado An increased risk of QT interval prolongation Details Fosfomycin Azithromycin AzaSite An increased risk of QT interval prolongation Details Fosfomycin Alfuzosin UroXatral An increased risk of QT interval prolongation Details Fosfomycin Anagrelide Agrylin An increased risk of QT interval prolongation Details Fosfomycin Bedaquiline Sirturo An increased risk of QT interval prolongation Details Fosfomycin Chloroquine Aralen® An increased risk of QT interval prolongation Details Fosfomycin Dasatinib Phyrago An increased risk of QT interval prolongation Details Fosfomycin Degarelix Injection Firmagon An increased risk of QT interval prolongation Details Fosfomycin Deutetrabenazine Austedo An increased risk of QT interval prolongation Details Fosfomycin Disopyramide Norpace An increased risk of QT interval prolongation Details Fosfomycin Dofetilide Tikosyn An increased risk of QT interval prolongation Details Fosfomycin Dolasetron Anzemet An increased risk of QT interval prolongation Details Fosfomycin Dolasetron Injection Anzemet An increased risk of QT interval prolongation Details Fosfomycin Encorafenib Braftovi An increased risk of QT interval prolongation Details Fosfomycin Entrectinib Rozlytrek An increased risk of QT interval prolongation Details Fosfomycin Eribulin Injection Halaven An increased risk of QT interval prolongation Details Fosfomycin Exenatide Injection Bydureon Reduced oral antibiotics absorption and reduced efficacy of oral antibiotics Details Fosfomycin Famotidine Calmicid An increased risk of QT interval prolongation Details Fosfomycin Famotidine Injection Calmicid An increased risk of QT interval prolongation Details Fosfomycin Felbamate Felbatol An increased risk of QT interval prolongation Details Fosfomycin Flecainide Tambocor® An increased risk of QT interval prolongation Details Fosfomycin Foscarnet Injection Foscavir An increased risk of QT interval prolongation Details Fosfomycin Galantamine Razadyne An increased risk of QT interval prolongation Details Fosfomycin Gatifloxacin Ophthalmic Zymar® An increased risk of QT interval prolongation Details Fosfomycin Gemifloxacin Factive An increased risk of QT interval prolongation Details Fosfomycin Glasdegib Daurismo An increased risk of QT interval prolongation Details Fosfomycin Goserelin Implant Zoladex An increased risk of QT interval prolongation Details Fosfomycin Granisetron Transdermal Patch Sancuso An increased risk of QT interval prolongation Details Fosfomycin Granisetron Injection Granisol An increased risk of QT interval prolongation Details Fosfomycin Histrelin Implant Supprelin An increased risk of QT interval prolongation Details Fosfomycin Hydroxychloroquine Plaquenil An increased risk of QT interval prolongation Details Fosfomycin Inotuzumab Ozogamicin Injection Besponsa An increased risk of QT interval prolongation Details Fosfomycin Ivabradine Corlanor An increased risk of QT interval prolongation Details

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Educational information only, not medical advice. Always confirm interactions with your pharmacist or prescriber before making any change to your medications.