Diphenhydramine (Benadryl) Dosage Table
|Child's weight (pounds)||20-24||25-37||38-49||50-99||100+||lbs.|
|Liquid 12.5 mg/ 5 milliliters (mL)||4||5||7.5||10||--||mL|
|Liquid 12.5 mg/ 1 teaspoon (tsp)||¾||1||1½||2||--||tsp|
|Chewable 12.5 mg||--||1||1½||2||4||tablets|
|Tablets 25 mg||--||½||½||1||2||tablets|
|Capsules 25 mg||--||--||--||1||2||caps|
When to Use. Treatment of allergic reactions, nasal allergies, hives and itching.
- 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.
Copyright 1994-2015 Barton D. Schmitt, M.D. All rights reserved.