Acyclovir
Brand: Zovirax (oral forms discontinued; Zovirax cream/ointment still marketed)
No boxed warning on the current FDA label.
- Caution
- Kidney injury with IV use or dehydration; dose adjusted for kidney function.
Common side effects
- Nausea
- Headache
- Diarrhea
- Dizziness
Key interactions
- Caution with other kidney-affecting drugs
Counseling points
- Start at first sign of an outbreak
- Drink plenty of fluids
- Take doses evenly around the clock
- Complete the full course
- Does not cure herpes
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