benadryl for kids

Good news: Benadryl can help dogs with a number of problems

Benadryl – is a popular allergy medicine that we count on to relieve hay fever and other allergies.

The good news: It’s also OK to give to dogs. 

Benadryl is safe for dogs

In the proper dosage, Benadryl is safe for dogs and helps treat —

  1. dog allergies
  2. the after-effects of vaccinations
  3. reactions to flea bites, bee stings or hornet and wasp stings
  4. ‘hot spots’ on the skin or itching
  5. Benadryl can reduce or eliminate motion sickness for dogs – so it’s perfect for that long car ride
  6. sometimes your Vet may recommend a daily low-dosage to treat anxiety problems

Check with your Vet

Although many websites recommend Benadryl as an important part of your dog first aid kit, others say you should ask your Vet before you give it to your pet.  So why not make this a must-ask at your next Vet appointment and get your Vet’s advice on when and how much Benadryl to give.

Dosage for small dogs

The rule of thumb for Benadryl for dogs, is 1 mg, per pound of the dog, every 8 hours.  However, Benadryl comes in tablet form, in a 25 mg dosage. For a small dog like a Morkie you might need just 4 or 5 mg and it would  be impossible to accurately divide a pill into 5 pieces…. So the liquid form is recommended

Children’s BENADRYL® Liquid does not contain any dyes or alcohol and can be accurately measured with a special eyedropper.

For dogs under 10 pounds:    ½ tsp. (2.5 mL) every 4 to 6 hours

For dogs over 10 pounds:   1 tsp. (5 mL) every 4 to 6 hours



It’s recommended you get an eye droppers, or syringe without the needle, with measurement markings —

Do NOT use these Benadryl in these forms:

Do not use Benadryl decongestants

or Benadryl for Colds

or any other type of Benadryl.

You want  children’s liquid Benadryl with the only ingredient listed: diphenhydramine.

Here’s a handy chart you can download, to help:


Side effects of Benadryl

Your dog will get sleepy and may be more thirsty than normal.  Some food before the Benadryl is a good idea.


Do Not Use Benadryl IF:

  • your dog has hyperthyroidism, glaucoma or chronic lung disease
  • your dog is on other medications
  • your dog is under 4 months old


My Big Disclaimer:

This site provides general information and should not be considered medical advice. You should always check with your Veterinarian prior to choosing a treatment option for your pet.