Herpes Zoster (shingles) ACYCLOVIR pediatric dosing:
>12 years old 800mg PO 5X/day x 5 to 7 days
<12 years old 30mg/kg/day divided Q8hours x 7 to 10 days

Weight of Patient:Dose: (acyclovir suspension 200mg/5ml)
10kg    22lbs2.5mL PO Q8hours
20kg    44lbs5mL PO Q8hours
30kg    66lbs7.5mL PO Q8hours
40kg    88lbs10mL PO Q8hours

*if in between weights listed, then round up
**point of reference: HSV 1st episode dose for age 2 to 12 years old = 400mg PO TID (up to 80mg/kg/day)

Varicella (chicken pox) ACYCLOVIR pediatric dosing:
adults or children >40kg = 800mg PO 4X/day x 5 days
<40kg = 80mg/kg/day divided Q6hours X 5 days

Weight of Patient:Dose: (acyclovir suspension 200mg/5ml)
10kg    22lbs5mL PO Q 6hours
20kg    44lbs10mL PO Q6hours
30kg    66lbs15mL PO Q6hours

Disclaimer:All of the information on this website is being presented as helpful reference material but should not be considered authoritative. There are no references because the information has been collected over the years piecemeal from notes, lectures, journals, textbooks, personal communications with other physicians and experience. You may disagree with some of it. Take it simply for what it is: information that I have found useful in my day to day practice as a clinical dermatologist and my hope is that you find it useful as well.

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