FDA label
What is Zirgan used for?
Zirgan contains ganciclovir. The FDA-approved uses below are quoted from the Indications and Usage section of its DailyMed label.
Source: DailyMed SPL label file dated 2026-10-23. Publisher page
The FDA label says: “ZIRGAN is indicated for the treatment of acute herpetic keratitis (dendritic ulcers) in adults and pediatric patients aged 2 years and older.”
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Zirgan, gel
Indications and Usage, quoted from the label by Bausch & Lomb Incorporated (NDA022211). Cross-references to other label sections are left out.
ZIRGAN is indicated for the treatment of acute herpetic keratitis (dendritic ulcers) in adults and pediatric patients aged 2 years and older.
Source: DailyMed label, set id ea25e7ac-7a93-4ec8-975b-2cec197e1c27, version 15, effective May 18, 2026. NDC 24208-535, one of 1 listing for this product.
Questions
What is Zirgan used for?
The FDA label says: “ZIRGAN is indicated for the treatment of acute herpetic keratitis (dendritic ulcers) in adults and pediatric patients aged 2 years and older.”
What drug class is Zirgan?
FDA lists ganciclovir in the Cytomegalovirus Nucleoside Analog DNA Polymerase Inhibitor and Nucleoside Analog Antiviral established pharmacologic class.
Does this page cover off-label uses or dosing?
No. This page shows only the Indications and Usage section of the FDA label. Ask a pharmacist or prescriber about dosing.