Dosage chart Diphenyhydramine (Benadryl™)

Note: Only for Infants 6 Months or Older. DO NOT give Benadryl to a child younger than 2 years unless advised by your physician.

Benadryl, an antihistamine, can be administered in different forms: Children’s liquid suspension, Children’s Chewable tablets, Children’s Meltaway strips, or adult tablets.

Weight	Milligram dosage	Liquid 12.5mg/5mL (5mL= 1tsp)	Chewable (12.5mg each)	Tablets (25mg each)
12- 14 lbs	5mg	⅓ tsp
14 – 19 Ibs	6.25 mg	½ tsp
20 – 27 lbs	9 mg	¾ tsp
28 – 34 lbs	12.5 mg	1 tsp	1 chew
35 – 41 lbs	16 mg	1 ¼ tsp	1 chew
42 – 48 Ibs	19 mg	1 ½tsp	1 ½ chew
49 – 54 lbs	22mg	1 ¾ tsp	1½ chew
55 – 62 lbs	25 mg	2 tsp	2 chew(s)	1 tablet
63 – 69 Ibs	28 mg	2 ¼ tsp	2 chew(s)	1 tablet
70 – 81 Ibs	32 mg	2 ½ tsp	2 ½ chew(s)	1 tablet
82 – 94 lbs	37 mg	3 tsp	3 chew(s)	1 tablet
95 – 109 lbs	43 me	3 ½ tsp	3 ½ chew(s)	1 tablet
>110 Ibs	50 mg	4 tsp	4 chew(s)	2 tablets