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 |