Zyrtec for Dogs Dosage By Weight Chart

Zyrtec is one of the most effective treatments against mild allergies in dogs. This article will go over the benefits offered by Zyrtec for dogs, its proper dosage, side effects, and more.

Zyrtec dosage for dogs by weight chart

Zyrtec for dogs reviews

Zyrtec reviews have shown that this drug is safe and effective when used as directed by a veterinarian. The active ingredient in Zyrtec is cetirizine hydrochloride.

It comes in tablet form and should be taken twice daily with or without food. It is generally well-tolerated by most dogs, but some side effects such as sedation, dry mouth, and GI distress have been reported.

Zyrtec is an antihistamine that works by blocking the effects of histamine in the body. Histamine is a type of chemical released by the immune system when there is an allergic reaction. Histamine causes allergy symptoms such as sneezing, itching, watery eyes, and runny nose. It is also used to relieve symptoms of hives, itching, and rashes.

Zyrtec reviews are very positive. Many pet owners have found this product to be very useful in relieving their dog’s allergies and allowing them to get a good night’s sleep. In addition, many pet parents have found that they were able to avoid using other medications that were more risky or less effective.

“This is a great product! I just put 1 tablet in my dog’s food and within 30 mins, his itching was gone. Within hours, you could see the redness go away. He is also on a skin cream for his ears, so I’m sure that helped too. But he was scratching until he bled and this has really been a Godsend. It’s also very affordable, which is important because we have 2 dogs and they both need it.”

“My dog has had severe allergies for 3 years. I have taken him to the vet several times a year and we have tried multiple medications, supplements, and special foods. Nothing worked. I gave him this yesterday and he is doing great! I am so glad I found this on Amazon for such a great price!”

“I have a golden retriever who suffers from terrible allergies every summer. My vet recommended Zyrtec, which I give him once a day. It relieves his allergy symptoms significantly, but unfortunately, he developed some stomach issues while taking it.”

“My dog is allergic to everything and has been since I brought her home from the shelter. I have tried everything, but nothing works. After two days on Zyrtec, she is already starting to look better.”

“I have two dogs and after trying many different shampoos, I found that Zyrtec was most effective at getting rid of allergies. It’s much cheaper than other medications but it works just as well. If you’re looking for a cost-effective method of getting rid of itching on your pets, I highly recommend this product!”

How much Zyrtec can I give my dog?

The usual dosage of Zyrtec for dogs is 0.5 mg per pound of body weight, given once or twice daily. The Zyrtec dosage should not exceed 20 mg per dose.

NOTE: If your dog is taking other medications, check with your veterinarian about possible drug interactions with Zyrtec.

Zyrtec dosage for dogs

Dog’s weight (lbs) Zyrtec dosage (tablet)
5 pounds ½ of 5 mg tablet
10 pounds 1 tablet of 5 mg
20 pounds 1 tablet of 10 mg
50 pounds 2 tablets of 10 mg
80 pounds 2 tablets of 10 mg
100 pounds 2 tablets of 10 mg

Can I give my dog Zyrtec for itching?

You can use Zyrtec for your pet’s itchiness, but they are only temporary fixes. Your pet may need additional treatment for long-term relief. Although antihistamines may help with allergy symptoms, like sneezing and itching, they don’t treat the underlying cause of allergies.

How long does it take for Zyrtec to work?

Generally, you should see some improvement within an hour or so after giving him the first dose. The length of time it takes for Zyrtec to take effect will vary depending on how severe your pet’s allergies are and how much medication he needs to take.

Should I give my dog Benadryl or Zyrtec?

Diphenhydramine (Benadryl), cetirizine (Zyrtec), and loratadine (Claritin) are among the most common antihistamines prescribed for dogs. All of them work well for relieving allergy symptoms and counteracting allergic reactions.

NOTE: If you notice your dog’s symptoms getting worse after giving them Zyrtec, then you should consider switching to another allergy medication. However, if your dog’s symptoms are improving, then keep giving them Zyrtec for as long as directed by your veterinarian.

Benadryl vs Zyrtec for dogs

While neither Benadryl nor Zyrtec is approved for use in dogs and cats, they may be used under the direction of your veterinarian. I recommend that you contact your veterinarian for exact dosing directions, as the dose depends on a variety of factors.

It is important to remember that both medications are antihistamines and should not be used in allergic reactions where epinephrine or corticosteroids are needed. They can also cause drowsiness, which is common in dogs.

Apoquel vs Zyrtec for dogs

Apoquel (Oclacitinib) is a medication that quickly relieves itching associated with atopic and allergic dermatitis. It blocks the action of a chemical called cytokine in the body that triggers itchiness. Apoquel is a prescription drug and can only be obtained from a veterinarian.

Zyrtec (Cetirizine) is an over-the-counter antihistamine that blocks the effect of histamine, a chemical released by immune cells during an allergic reaction. In severe cases, Zyrtec doesn’t give your dog as much relief as Apoquel does.

Apoquel’s side effects include vomiting, diarrhea, and loss of appetite among other things. These side effects are uncommon and often mild. The most common side effect of Apoquel is a decreased appetite.

Side effects of Zyrtec include dry mouth, drowsiness, fatigue, and dizziness among others. Dogs may also experience some stomach discomfort when taking Zyrtec.

What do vets prescribe for dog allergies?

There are two types of drugs that can be used to treat allergies in dogs: antihistamines and corticosteroids.

The type your vet prescribes depends on the type of allergic reaction your dog is experiencing (e.g., seasonal allergies, food allergies, and flea allergies). Usually, a combination of the two will be prescribed.

NOTE: Corticosteroids suppress the immune system, which helps with allergy symptoms, but they also have side effects.

Conclusion of giving dogs Zyrtec

When it comes to allergies, dogs are no different from humans. They can have allergies to food, grass, and other environmental factors. While some allergies may be mild, others can make your dog extremely uncomfortable.

If you are looking for an over-the-counter medication that is safe for your pet and will reduce their allergy symptoms, Zyrtec can be a good option.

Zyrtec is one of the most effective medications for both humans and dogs with allergies. It effectively reduces the production of histamine in the body. As a result, it alleviates many allergy symptoms such as itching and swelling.

However, that doesn’t mean that it is risk-free. Zyrtec for dogs can have some side effects and health risks, so you should always consult your vet before giving it to your dog.

If you do decide to give your dog Zyrtec, make sure to monitor them closely after giving them their first dose. Some dogs have had bad reactions to the drug, and if they do, you need to get them to the vet immediately so they can treat any issues they might be having.


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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