logoSVG

(414) 266-2000

  • A A A

    Text Size

  • Print Page

Diphenhydramine Benadryl dose table

Child's weight (pounds)

 20-24

25-37

 38-49

50-99

 100+

 lbs.

 Liquid 12.5 mg/5 mililiters (ml)

 4

5

7.5

10

-

 ml

 Liquid 12.5 mg/1 teaspoon (tsp)

 .75

 1.5

 2

 -

 tsp

 Chewable 12.5 mg

 -

 1

 1.5

 2

 4

 tablets

 Tablets 25 mg

 -

 .5

 .5

 1

 2

 tablets

 Capsules 25 mg

 -

caps 

When to Use: Treatment of allergic reactions, nasal allergies, hives and itching

Table Notes:

  • Age Limits - For allergies, don't use under 1 year of age. Reason: it causes most babies to be sleepy. For colds, not advised at any age.
  • Reason - no proven benefits. It should not be given if under 4 years old. If under 6 years, don't give products with more than one ingredient in them (FDA recommendation 2008).
  • Dose - Find the child's weight in the top row of the dose table. Look below the correct weight for the dose based on the product you have.
  • Measure the Dose - Syringes and droppers are more accurate than teaspoons. If possible, use the syringe or dropper that comes with the medicine. If not, you can get a med syringe at drug stores. If you use a teaspoon, it should be a measuring spoon.
  • Reason - regular spoons are not reliable. Keep in mind 1 level teaspoon equals 5 ml and that ½ teaspoon equals 2.5 ml.
  • Adult Dose - 50 mg
  • How Often - Repeat every 6 hours as needed.
  • Children's Benadryl Fastmelts - Each fastmelt tablet equals 12.5 mg. They are dosed the same as chewable tablets.

Author:Barton D. Schmitt, M.D.

Copyright 1994-2014 Barton D. Schmitt, M.D.