Benadryl for Dogs Dosage By Weight Chart

Benadryl is a medication used to quickly relieve itching and reduce the discomfort of allergic reactions. This article will provide you with an overview of this medicine, its dosage, and its side effects.

How much Benadryl can I give my dog

Benadryl for dogs reviews

Benadryl works by blocking the action of histamine, which causes allergic reactions such as sneezing, itching, and other respiratory tract problems. Benadryl is an over-the-counter medication that can be purchased at most pharmacies without a prescription. It’s generally safe to use, but it may cause drowsiness.

The reviews are mostly positive, but there are some complaints.

“I have been using Benadryl for dogs for years. It works wonders on my dog’s allergies and keeps her comfortable all day long. She is a big girl and can be a handful when it comes to the allergy season.”

“I have a small dog that has a very sensitive stomach and skin issues, so I’ve tried several different things to help him feel better. I found this product at the store, so I decided to give it a try. It worked fantastically!”

“This stuff really works great! My dog’s allergies were very bad this year, so we tried everything under the sun. This really helped him get over his skin issues and he didn’t have any more symptoms after using this product.”

“This is an excellent product. My dogs are very allergic to fleas and ticks, so I’ve been using this product for the past 6 months. I noticed a huge difference in their health within the first week of use. They no longer scratch themselves as much, their coats are shiny and soft, and they’re not scratching themselves in the house as much either. It’s great!”

” I have a little dog who is allergic to everything. I was so happy to find Benadryl for dogs, but it doesn’t seem to work at all for him. He does not sneeze or itch, just like before he was on Benadryl. I am very disappointed in this product and would not recommend it to anyone else.”

“I have been using Benadryl for my dogs for years. I have tried other products but they do not work as well as Benadryl. It is easy to give them, has no side effects and they love it! I love that I can get them at a reasonable price, plus the shipping is so fast.”

How much Benadryl can I give my dog?

The typical starting dose for dogs is 1 mg of Benadryl per pound of body weight. For example, if he weighs 50 pounds, give him 50 mg. If your dog weighs 70 pounds, give him 70 mg of Benadryl. If he weighs 90 pounds, give him 90 mg — and so on.

Can I give my dog Benadryl for itchy skin?

The short answer is yes, you can give your dog Benadryl for itching due to allergies! Benadryl also reduces other symptoms of allergies, including:

  • Hives
  • Swelling
  • Rash or irritation
  • Watery eyes
  • Runny nose

What are the side effects of Benadryl in dogs?

While it’s generally safe if given in the right dosage, giving Benadryl to your dog can have some negative side effects, including:

  • Drowsiness
  • Lethargy
  • Nausea
  • Vomiting
  • Diarrhea
  • Dry mouth
  • Excessive thirst
  • Constipation
  • Urinary retention

How often can I give my dog Benadryl?

As a general rule, you should not give your dog Benadryl more than twice or three times a day, or every eight hours.

If your dog isn’t responding well to the Benadryl, or if you’re not sure whether it’s working or not, you should take them to the vet immediately. If they appear to be experiencing difficulty breathing, contact your vet right away as this is an emergency situation.

How long does it take for Benadryl to work on dogs?

In general, the antihistamine properties of diphenhydramine will start working within a half-hour after oral administration and should last up to 8 hours. If your dog is suffering from an allergic reaction and you are administering Benadryl to help control itching, you should see improvement in about 30 minutes.

Will Benadryl make a dog sleepy?

Benadryl can make dogs sleepy, but it’s unlikely that it would cause a dog to fall asleep within minutes. It’s important to note that Benadryl is not a sleeping pill.

What is the best anti-itch medicine for dogs?

The best anti-itch medicine for dogs will be gentle enough to use daily if necessary and strong enough to get rid of the problem, whether it’s fleas or dry skin.

  1. Burt’s Bees for Dogs Itch Soothing Shampoo and Spray
  2. Curaseb Medicated Chlorhexidine Hot Spot Treatment for Dogs & Cats
  3. Pet MD Hydrocortisone Spray for Dogs and Cats
  4. Veterinary Formula Clinical Care Antiseptic and Antifungal Spray/Shampoo for Dogs and Cats
  5. Vet’s Best Healthy Coat Shed & Itch Relief Dog Supplements
  6. Natural Dog Company Skin Soother
  7. Curaseb Hydrocortisone Spray for Dogs & Cats
  8. VETNIQUE LABS Dermabliss Anti-Itch and Medicated Dog Shampoo
  9. Anti Itch Oatmeal Spray for Dogs and Cats
  10. DOGSWELL Remedy + Recovery 0.5% Hydrocortisone Lotion for Dogs

If your dog continues to suffer from itching, you should see your veterinarian for more specific treatments.

Apoquel vs Benadryl

Apoquel and Benadryl are both good at treating allergies, but they have different mechanisms of action.

Benadryl can be used to reduce symptoms of atopy such as itching, scratching, and skin inflammation. However, it may not completely eliminate those symptoms because it doesn’t target the underlying cause — instead, it works by suppressing histamine release from mast cells.

Apoquel is an FDA-approved medication designed specifically for dogs with inflammatory skin disease, also known as atopic dermatitis. It’s been shown to reduce itching and scratching in up to 80% of dogs within one month of treatment.

Apoquel is more expensive than Benadryl but it provides longer relief from chronic itching caused by allergies in dogs with no drowsiness or other side effects that can occur with Benadryl.

It’s important to note that you should always consult with your vet before giving your dog any medication. While these medications may be safe for some dogs, there are many factors that can affect their effectiveness and even harm them if used improperly.

Conclusion of Benadryl for dogs

Benadryl is a common over-the-counter medication used to treat allergies and other conditions. It comes in several different forms, including liquid and tablet, but the most common is the chewable tablet.

Benadryl works by blocking histamine receptors in the body. Histamine is a neurotransmitter responsible for causing allergic reactions such as sneezing, itching and runny nose.

The recommended dosage of Benadryl for dogs is 1 mg per pound of body weight. For example, if your dog weighs 50 pounds, the dosage would be 50 mg.

Benadryl can take anywhere from 30 minutes to 1 hour for it to start working. This is because the body needs time to break down and process the medication before it can begin working its magic on allergies or other symptoms.

As with any medication, do not give your pet more than what the label recommends.


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Hannah Elizabeth is an English animal behavior author, having written for several online publications. With a degree in Animal Behaviour and over a decade of practical animal husbandry experience, Hannah's articles cover everything from pet care to wildlife conservation. When she isn't creating content for blog posts, Hannah enjoys long walks with her Rottweiler cross Senna, reading fantasy novels and breeding aquarium shrimp.

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