Zyrtec Dosage Chart for Dogs Per Pound

Zyrtec is a non-sedating antihistamine that is used to treat allergies in dogs. The recommended dosage of Zyrtec for dogs is 0.5 mg per pound of body weight, given once daily. The dosage may be divided and given twice daily to increase compliance by your dog.

Zyrtec dosage for dogs per pound

How much Zyrtec can I give my dog?

As with any medication, the dosage will depend on your dog’s weight. The following chart shows the recommended dosages based on the weight of your dog:

Zyrtec dosage for dogs
Dog’s weight Zyrtec dosage
5 pounds ½ of a 5 mg tablet
10 pounds one 5 mg tablet
20 pounds one 10 mg tablet or two 5 mg tablets
50 pounds two 10 mg tablets
80 pounds two 10 mg tablets
100 pounds two 10 mg tablets

It’s important that you follow these directions precisely or you could overdose on your pet. Always make sure that medications are stored safely out of reach of children and pets.

Does Zyrtec help with dog allergies?

Yes, Zyrtec helps relieve allergy symptoms in dogs such as itching, sneezing, and redness in the skin. The medicine works by blocking the action of histamine, which is a natural substance released during an allergic reaction.

What are the side effects of Zyrtec in dogs?

Some dogs may develop side effects while taking Zyrtec such as drowsiness, vomiting, diarrhea, loss of appetite, constipation, and lethargy. If any of these side effects are seen, contact your veterinarian.

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

It takes about one or two hours for Zyrtec to work, but it can take longer for some dogs.

Once you see signs of an allergy attack such as sneezing, itching and scratching, you will need to give them one tablet every 12 hours until their symptoms improve or until they are completely gone. This can take anywhere from a few days up to several weeks depending on how severe their symptoms are and how long they have been experiencing them already!

Can dogs overdose on Zyrtec?

Yes. All medications have side effects, and this one is no exception. In rare cases, dogs who consume too much Zyrtec will suffer from vomiting, diarrhea, and lethargy. If you suspect that your dog has ingested more than the recommended dose of Zyrtec, contact your veterinarian immediately.

What is better for dogs Benadryl or Zyrtec?

When it comes to dog allergies, Benadryl and Zyrtec are two of the most popular medications. While they both work well, they do have some differences that may affect which one your dog prefers.

Some dogs while others are more sensitive to one than the other. The choice will be based on your dog’s reaction to each medication as well as your comfort level with administering it.

Benadryl (diphenhydramine) is an antihistamine that works by blocking the effects of histamines, chemicals that your body produces in response to allergens. It causes drowsiness and can make some dogs sleepy as well.

Zyrtec (cetirizine) is also an antihistamine that blocks the effects of histamines but does not cause drowsiness like Benadryl does. Both drugs are available over-the-counter at pharmacies where you can get them without a prescription from your veterinarian.

Some owners choose to use Benadryl for their dogs due to its affordable cost and availability in most grocery stores. Others prefer Zyrtec because it doesn’t cause drowsiness or dry mouth like some antihistamines do. Dogs who suffer from seasonal allergies may benefit from using these drugs year-round, but it’s best to consult with your vet before administering the drug.

What over-the-counter allergy medicine is best for dogs?

There are several over-the-counter products available to help with allergies in dogs. Here’s what you need to know about each one:

Benadryl (diphenhydramine). This medication works by blocking histamine, which is responsible for many of the symptoms associated with allergies. It can be used in conjunction with steroids or other medications that help control the immune system response, such as Apoquel and Atopica (immunosuppressants). However, Benadryl is not recommended for long-term use because it can have potential side effects, including drowsiness, dizziness, and confusion.

Another common recommendation is Zyrtec (cetirizine). This medication has fewer side effects than Benadryl; however, it can still cause drowsiness in some dogs. It also interacts negatively with certain medications.

Please note: Over-the-counter allergy medicine is a convenient option for people who want to help their pet’s allergies. Unfortunately, many of these products have a number of drawbacks and can be quite dangerous. In particular, they don’t treat the underlying cause of the allergy, so your pet will keep having symptoms unless you switch them to a prescription medication.

Conclusion of Zyrtec dosage for dogs

Zyrtec can be used in dogs with allergies. However, it is important to remember that it is not a cure for allergies and will only help control the symptoms. If your dog is suffering from chronic allergies, you should take him or her to the veterinarian as soon as possible.

The recommended dosage of Zyrtec is 0.5 mg per pound of body weight, given once daily. The dose may be divided and given twice daily if needed.

The dosage should be adjusted as necessary for the individual dog to maintain clinical response and remission. The safety of Zyrtec in dogs at doses above 20 mg per pound has not been evaluated.

Zyrtec can be given with or without food but should be given at the same time every day to maintain a consistent level of drug in the patient’s body.

If you have questions about how to give Zyrtec to your dog, or have concerns about side effects, talk to your veterinarian.


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.

Leave a Reply

Your email address will not be published.

Back to Top