Antivirals

Brand Generic Dosing Amount Ages Pregnancy Class/Mechanism
Famvir
PO G 		famciclovir 500mg po tid x7d (zoster)
250mg po tid x7d (simplex) 		125/250/500mg Not Established B guanine analogue
Valtrex
PO G 		valcyclovir 1g po tid x7d (zoster)
500mg po tid (simplex) 		500mg/1g >12 years B guanine analogue
Viroptic
G 		trifluridine 1% q2h 24-48h, then qid 7.5mL >6 years C DNA synthesis interference
Zirgan ganciclovir 0.15% 5x/d, then tid x7d 5g (gel) >2 years C DNA synthesis interference
Zovirax
PO G 		acyclovir 800mg po 5x/d x7d (zoster)
400mg po 5x/d x7d (simplex) 		200/400/800mg >2 years B inhibits DNA polymerase