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Diphenhydramine (Benadryl®) Dosage Guide

Diphenhydramine (Benadryl®) may be used to help relieve symptoms related to allergic reactions, nasal allergies, hives, and itching.

Always check with your child’s healthcare provider before giving this medication, especially for young children.

Child's Weight (pounds)
20 - 24
25 - 37
38 - 49
50 - 99
100+
Measurement Type
Capsules 25 mg
--
--
--
1
2
capsules
Chewable 12.5 mg
--
1
1 1/2
2
4
tablets
Liquid 12.5 mg/ 1 teaspoon (tsp)
3/4
1
1 1/2
2
--
tsp
Liquid 12.5 mg/ 5 milliliters (mL)
4
5
7.5
10
--
mL
Tablets 25 mg
--
1/2
1/2
1
2
tablets

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

Important Safety Information

Age Guidelines

  • Do not use diphenhydramine for allergies in children younger than 1 year old unless directed by a healthcare provider.

  • Diphenhydramine is not recommended for treating colds in children of any age because it has not been shown to provide benefit.

  • Children younger than 4 years should not be given diphenhydramine products unless specifically recommended by a doctor.

  • For children younger than 6 years, avoid combination products that contain more than one active ingredient unless directed by a healthcare provider.

 

How to Measure the Correct Dose

  • Use the dosing syringe or dropper that comes with the medicine whenever possible.

  • If you need a replacement, medication syringes are available at most pharmacies.

  • Do not use regular kitchen spoons because they are not accurate.

  • If using a measuring teaspoon:

    • 1 teaspoon (tsp) = 5 mL

    • ½ teaspoon = 2.5 mL

 

How Often to Give

  • May be repeated every 6 hours as needed.

  • Always follow the instructions on the product label or from your child’s healthcare provider.

 

Benadryl® Fastmelt Tablets

Each Fastmelt tablet contains 12.5 mg of diphenhydramine and should be dosed the same way as the 12.5 mg chewable tablets.

Locations and Hours

New Horizon Health Center

191 E. Price Road

Brownsville, Tx 78521

(956) 548 - 7400

Mon\Tues\Thurs\Fri - 8:00 AM - 5:00 PM

Wednesdays - 10:00 AM - 6:00 PM

Saturdays - 9:00 AM - 1:00 PM

Sundays - CLOSED

New Horizon Health Center

2137 E. 22nd Street

Brownsville, Tx 78520

(956) 548 - 7400

Mon\Tues\Thurs\Fri - 8:00 AM - 5:00 PM

Wednesdays - 10:00 AM - 6:00 PM

Saturdays and Sundays - CLOSED

Insurances Accepted
New Horizon Health Center accepts the following insurance plans:
  • United Healthcare

  • Wellmed

  • Humana

  • Aetna

  • Blue Cross Blue Shield

  • Gravie

  • CSHCN (Children with special Health Care Needs)

  • Ambetter

  • Medicaid

  • Medicare

  • Heathy Texas Women

  • Champva

  • Prominence

  • Railroad

  • Key Benefit Advantage

  • Cigna

  • Oscar

  • Tri-Care

  • BPA

  • Cameron Care

  • Magellan

  • March Vision

  • Evolve Vision

  • VMR

  • ...and more

If your insurance plan is not listed, please
call 956-548-7400 to confirm coverage.

Why choose New Horizon Health Center?​

  • Same-day & Walk-in Appointments

  • Sliding Fee Scale

  • Insurance and Benefits Assistance

Smiling Family

Frequently Asked Questions

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