Liquid Benadryl for Dogs Dosage Chart ml

Benadryl is used to help with allergies, but many pet owners wonder whether their dog can take it, and how much Benadryl you can give a dog. This article will address Benadryl for dogs: dosage chart, side effects, and reviews.

Benadryl for dogs dosage chart ml

Benadryl for dogs reviews

Benadryl for dogs is a safe and effective medication that can help your dog get through the night. It’s an antihistamine, so it works by decreasing the effects of histamine in the body. It will reduce itching, sneezing, and coughing, as well as decrease swelling. It also works to decrease inflammation in respiratory tract infections and allergic reactions.

Benadryl is available in several different forms, including tablets, chewable, and liquid that you can give your dog directly or mix into food or water. Follow the dosage instructions on the product label carefully, as they will vary depending on your dog’s weight.

The Benadryl reviews are overwhelmingly positive. In fact, most of the people who said they were satisfied with the product made it sound like it was life-changing for their pets.

One reviewer said she has a “sweet” Jack Russell terrier and the medicine worked wonders on his allergies. Another said he had to take Benadryl for about two weeks before he stopped sneezing every time he got in the car.

“I am so glad I found this product. My dog has been suffering from anxiety for a long time and nothing has worked until now. He is a very hyper dog and gets excited easily, but this medication has really helped calm him down. I would highly recommend this to anyone who needs help with their dog’s anxiety.”

“My dog has a sensitive stomach and takes Benadryl for This along with his medication for his allergies twice a day. He loves the taste of it and is so excited when he sees me open up the package! It’s one of the few foods my dog will actually eat without any issues. Great product!”

“It’s a really great product. I am very satisfied with it. My dog is sleeping better than ever before, and he has no more trouble with his allergies. He also seems to have a better appetite. I highly recommend this product.”

“I have been using Benadryl for my dog for about 2 years. He has allergies and always had problems with his ears. He is a very active dog, but his allergies got worse as he got older. I started giving him Benadryl and it seemed to help.”

“This is a great product that has helped my dog so much. I have been using this for a few weeks and it seems to be working well. My dog has allergies and he used to get sneezing every single time he got out of the car or went outside. He would also scratch his eyes and ears trying to stop the itchiness. I switched him to Benadryl, which is an antihistamine drug that reduces itching. He has stopped scratching his eyes and ears! He also has not had any more sneezing attacks since we started using this product on him! I highly recommend this product if you have a pet with allergies problems!”

How much Benadryl can I give a dog?

Most pet owners give their dog 1 mg of Benadryl per pound of body weight; this means a 10-pound dog would get 10 mg, while a 20-pound dog would get 20 mg.

Benadryl for dogs dosage chart ml

The liquid contains 2.5 mg of Benadryl per milliliter (ml). If your dog weighs 50 pounds he will need 2 tablets of 25 mg or 20 ml which equals 4 teaspoons.

Dog’s weight (lbs) Benadryl dosage (ml)
10 pounds 4 ml
20 pounds 8 ml
30 pounds 12 ml
40 pounds 16 ml
50 pounds 20 ml
60 pounds 24 ml
70 pounds 28 ml
80 pounds 32 ml
90 pounds 36 ml
100 pounds 40 ml

Benadryl for dogs dosage by weight

The following chart is an estimate of how much Benadryl to give your dog based on his weight.

  • Children’s Benadryl comes in a 12.5 mg dosage, which should be appropriate for dogs weighing less than 20 pounds. If your dog weighs more than 20 pounds, you might want to consider giving him 25 mg of regular strength Benadryl instead.
  • Diphenhydramine HCl (Generic) tablets come in 25mg and 50mg strength.
Dog’s weight (lbs) Benadryl dosage (tablet)
5 pounds 1/2 tablet of 12.5 mg
10 pounds 1 tablet of 12.5 mg
20 pounds 1 and 1/2 tablets of 12.5 mg
30 pounds 1 tablet of 25 mg
50 pounds 1 tablet of 50 mg
80 pounds 1 and 1/2 tablets of 50 mg
100 pounds 2 tablets of 50 mg

How often can I give my dog Benadryl for allergies?

Most dogs will respond to therapy within 12 hours. Benadryl can be given every 8 to 12 hours. You should only need to use this medication for a short period of time (a few days).

Keep in mind that Benadryl is not intended to be used as a long-term treatment for dog allergies. Your dog will need additional medication from your veterinarian if she continues to experience allergy symptoms after using Benadryl for several days.

Can I give my dog Benadryl allergy plus congestion?

You should not give your dog Benadryl allergy plus congestion because it contains the decongestant pseudoephedrine, which is not safe for use in dogs and could potentially be fatal.

Pseudoephedrine causes the blood vessels to constrict, which leads to increased blood pressure, rapid heartbeat, and difficulty breathing.

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

It can take anywhere between 1 to 2 hours before you start noticing a positive effect from taking Benadryl. This is because it takes some time for the antihistamine to hit your dog’s system, enter his bloodstream and then act on the receptors that trigger itching in his body. So don’t be alarmed if you notice no change after an hour or two; it may take a while longer until you see something happen.

Is there an alternative to Benadryl?

There are several medicines that can be used to relieve the symptoms of allergies in dogs. Each medicine acts in a slightly different way, and some work better for certain dogs than others.

  1. Cetirizine (Zyrtec)
  2. Fexofenadine (Allegra)
  3. Loratadine (Claritin)
  4. Clemastine (Tavegyl)
  5. Chlorpheniramine (ChlorTrimeton)
  6. Cyproheptadine (Periactin)
  7. Hydroxyzine (Atarax)
  8. Terfenadine (Seldane)
  9. Trimeprazine (Temaril-P)

Conclusion of dosing dogs with Benadryl

Many people will give their dogs a small dose of Benadryl as a temporary fix for allergies or anxiety, but it’s important to know that long-term use of the drug is not recommended and should only be used if prescribed by your veterinarian.

If you have any questions or would like to share your experience with Benadryl and dogs, please tell us in the comments section below.


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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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