Indication
Herpes zoster ophthalmicus, herpes simplex ophthalmicus
Mechanism of Action
Inhibits viral DNA polymerase, preventing viral replication.
Available Quantities
125 mg, 250 mg, 500 mg tablets
Dosage/Instructions
HSV: Take 1 500 mg tablet 3 times daily for 7 days
HZV: Take 1 250 mg tablet 3 times daily for 7 days
Pregnancy & Nursing
Limited data; use with caution
Pediatric Use
No studies
Contraindications, side effects, etc.
Contraindications: Hypersensitivity to famciclovir or penciclovir cream. Common Side Effects: Headache, nausea; gastrointestinal effects (diarrhea, abdominal pain, vomiting); less common effects include confusion, mood changes, rash, pruritus. Acute renal failure reported in patients with underlying renal disease receiving high doses. Dosage adjustments are necessary in patients with renal impairment.
