AIDS - CMV retinitis Herpes simplex, Mucocutaneous, Acyclovir-resistant - Patient immunocompromised
Off-label Cytomegaloviral pneumonia AIDS, Intravitreal - CMV retinitis Cytomegaloviral infection - HIV infection Herpes simplex keratitis HIV infection - Varicella-zoster virus infection
MFDS-label CMV Viraemia - Hematopoietic stem cell transplantation
Black Box Warning: Renal impairment is the major toxicity of foscarnet. Foscarnet is indicated for use only in immunocompromised patients with cytomegalovirus retinitis and mucocutaneous acyclovir-resistant herpes simplex virus infections
Calculate and monitor CrCl at baseline and during treatment.
Perform electrolyte panel, including serum calcium, magnesium, potassium, and phosphorus at baseline and during treatment.
Monitor for signs and symptoms of electrolyte abnormalities.
Perform regular ophthalmologic exams in patients with CMV retinitis.
Common
Serious
Multiple drug-drug interactions
Antimicrobial class: Antiviral, Pyrophosphate analog
Pregnancy category: C
Average serum half life: 3.3-4 hours (plasma), 87.5 hours (urinary excretion)
Hydration therapy
Precautions: