Foscarnet Injection

Name: Foscarnet Injection Drug Interactions
Creator: Dr. Brian Staiger, PharmD, BCPS

259 interactions 371 cited references

Also sold as: Foscavir Foscavir®

About Foscarnet Injection

Foscarnet injection is used alone or with ganciclovir (Cytovene) to treat cytomegalovirus (CMV) retinitis (an eye infection that can cause blindness) in people who have human immunodeficiency virus (HIV) infection. Foscarnet injection is also used to treat herpes simplex virus (HSV) infections of the skin and mucous me… Read the full Foscarnet Injection drug information page →

Medically reviewed by Dr. Brian Staiger, PharmD, BCPS · Updated Aug 9, 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: Dronedarone Cisapride Levoketoconazole Levomethadyl Mesoridazine Pimozide

15 Contraindicated 244 Major

All (259) Contraindicated (15) Major (244)

Major

Foscarnet Injection Ziftomenib Komzifti An increased risk of QT interval prolongation and torsade de pointes Details Foscarnet Injection Zolmitriptan Zomig An increased risk of cardiotoxicity (QT prolongation, torsades de pointes, cardiac arrest) Details Foscarnet Injection Zotepine An increased risk of cardiotoxicity (QT prolongation, torsade de pointes, cardiac arrest) Details Foscarnet Injection Zuclopenthixol 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.