Diphenhydramine dosage for children


Diphenhydramine (e.g., Benadryl) is a drug that is used to treat certain types of allergic reactions. Below is a dosage chart for children. It is better to use a dosing device rather than a spoon. Be careful, there are several products with different diphenhydramine concentrations.

To determine the right dosage for your child, follow these steps:

  • Find the line that corresponds to the child's weight (in pounds or kilograms).
  • Identify the proper dose based on the product you have in hand.
  • Administer the dose every 6 hours for a maximum of 4 doses within a 24-hour period.

 
 

Diphenhydramine dosage for children
WeightDoseoral liquid
6.25 mg / 5 mL
chewable tablets
12.5 mg
22-27 lbs10-12 kg12.5 mg10 mL1
28-32 lbs13-14 kg16.25 mg13 mL1
33-38 lbs15-17 kg18.75 mg15 mL1 ½
39-43 lbs18-19 kg22.5 mg18 mL1 ½
44 lbs and more20 kg and more25 mg20 mL2

** Confirm with a healthcare professional that the use of this product is appropriate for your child's allergic reaction.

 
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