Four Seasons Pediatrics

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Diphenhyrdamine (Benadryl) Dosing Chart

Dose every 6 hours: Dose for hives and or itching. In general once hives have started you should continue regular dosing until there have not been hives for the entire day.

Diphenhyrdamine (Benadryl) Dosing Chart
Weight Liquid 12.5mg/5ml Chewable Tablets 12.5mg each Tablets 25mg each
20-24 lbs 3/4 tsp (4 ml) Use liquid Use liquid
25-37 lbs 1 tsp (5 ml) 1 tablet Use liquid or chews
38-49 lbs 1 1/2 tsp (7.5 ml) 1 1/2 tablet Use liquid or chews
50-99 lbs 2 tsp (10 ml) 2 tablets 1 tablet or cap
100+ lbs 4 tsp (20 ml) 4 tablets 2 tablets or caps

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