Drug and dose	Frequency	Duration	Cost†
Acyclovir, 400 mg	Three times per day	5 days	$10
Acyclovir, 800 mg	Twice per day	5 days	$10
Acyclovir, 800 mg	Three times per day	2 days	$10
Famciclovir (Famvir), 125 mg	Twice per day	5 days	$30 ($115)
Famciclovir, 1 g	Twice per day	1 day	$25 ($100)
Famciclovir, 500 mg and 250 mg	Single dose of 500 mg on day 1, followed by 250 mg twice per day on days 2 and 3	3 days	$20 ($75)
Valacyclovir (Valtrex), 500 mg	Twice per day	3 days	$20 ($75)
Valacyclovir, 1 g	Once per day	5 days	$30 ($100)