|Diphenhydramine (Benadryl) Dose Table|
|Child's weight (pounds)||20-24||25-37||38-49||50-99||100+||lbs.|
|Liquid 12.5 mg/ 1 teaspoon (tsp)||¾||1||1½||2||--||tsp|
|Liquid 12.5 mg/5 milliliters (ml)||4||5||7.5||10||--||ml|
|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). They should be not be given if under 4 years old. If under 6 years, don't give products with more than one ingredient in them. (Reason: FDA recommendations 10/2008).
- 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 and Senior Reviewer: Barton D. Schmitt, M.D.
Content Set: Child Symptom Checker
Child Symptom Checker