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
17-21 lbs 3/4 tsp (3.75ml) Use liquid Use liquid
22-32 lbs 1 tsp (5ml) 1 tablet Use liquid or chews
33-42 lbs 1 1/2 tsp (7.5ml) 1 1/2 tablet Use liquid or chews
43-53 lbs 2 tsp (10ml) 2 tablets 1 tablet
54-64 lbs 2 1/2 tsp (12.5ml) 2 1/2 tablets
65-75 lbs 3 tsp (15ml) 3 tablets
76-86 lbs 3 1/2 tsp (17.5ml) 3 1/2 tablets
>86 lbs 4 tsp (20ml) 4 tablets 2 tablets

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