Benadryl Dosage Chart

This Benadryl dosage chart (and your doctor's input!) can help you determine the right amount of antihistamine to give your child.

by BabyZone Editors
Antihistamine ONLY Benadryl Allergy Liquid
12.5 mg/ 5ml		 Benadryl l Dye-free Allergy Liquid
12.5 mg/5ml		 Benadryl Allergy FASTMELT® Tablets
12.5 mg/tab
Flavor Cherry Bubble Gum Grape
Dosing Frequency Every 4-6 hours Every 4-6 hours Every 4-6 hours
Under 3 months Do not use Do not use Do not use
4-11 mos.
12-17 lbs.		 Do not use Do not use Do not use
12-23 mos.
18-23 lbs.		 Do not use Do not use Do not use
2-3 yrs.
24-35 lbs.		 Do not use unless directed by doctor Do not use unless directed by doctor Do not use unless directed by doctor
4-5 yrs.
36-47 lbs.		 Do not use unless directed by doctor Do not use unless directed by doctor Do not use unless directed by doctor
6-8 yrs.
48-59 lbs.		 1 to 2 tsp 1 to 2 tsp 1 to 2 tablets
9-10 yrs.
60-71 lbs.		 1 to 2 tsp 1 to 2 tsp 1 to 2 tablets
11 yrs.
71-95 lbs.		 1 to 2 tsp 1 to 2 tsp 1 to 2 tablets
12 + yrs.
96 + lbs.		 2 tsp 2 tsp 1 to 2 tablets


Now that you know the dose, do you know for sure whether Baby's symptoms mean a cold or allergies—or even asthma? (Take the quiz!). And see what our experts have to say about giving children Benadryl on long trips and whether it's OK to give antihistamines to kids to help them sleep.

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Got the Right Dose?

Before you reach into the medicine cabinet, do you know how much medicine Baby needs? Make sure!