How Much Zyrtec Can I Give My Dog? Dosage for Dogs
If you’re like most dog owners, you want to do whatever you can to keep your furry friend healthy and happy. That’s why it’s important to know the right dosage of Zyrtec for dogs.
In this blog post, we will discuss the recommended dosage for dogs, as well as some potential side effects of Zyrtec. Keep reading to learn more!
What Is Zyrtec?

Zyrtec is an antihistamine that is used to treat allergies in dogs. It can be used to treat both seasonal and non-seasonal allergies. Zyrtec can also be used to treat skin allergies, such as those caused by flea bites. Zyrtec works by blocking the action of histamine.
Histamine is a substance that is released by the body in response to an allergic trigger. When histamine binds to receptors on cells, it causes the cells to release chemicals that cause allergy symptoms. By blocking histamine, Zyrtec prevents these symptoms from occurring.
Zyrtec works by blocking histamines that are produced by the body in response to an allergen. This action helps to relieve symptoms such as sneezing, runny nose, watery eyes, and itching. Zyrtec is most effective when taken at least 30 minutes before exposure to an allergen.
The most common side effect of Zyrtec is drowsiness. Other side effects may include dry mouth, stomach upset, and diarrhea. Zyrtec should not be used in dogs who are pregnant or nursing. It should also not be used in dogs with certain medical conditions, such as liver disease. Zyrtec is available by prescription from your veterinarian.
Zyrtec can be used to provide relief for your dog’s allergies, just as it does for humans. Allergies in dogs can cause a number of uncomfortable symptoms like itchiness, excessive licking, and red or watery eyes. If your dog is experiencing any of these symptoms, Zyrtec can help to provide relief.
In addition, Zyrtec can also be used to help relieve symptoms associated with seasonal allergies like pollen and grass. So if you’re looking for a way to help your furry friend feel better during allergy season, Zyrtec may be the answer.
How Much Zyrtec Can I Give My Dog? Dosage for Dogs

Recommended Zyrtec dosage for dogs is 0.5 mg per pound, once or twice a day, but not to exceed 20 mg in 24 hours. Zyrtec comes in five and ten milligram tablets, so you might need a pill cutter in order to give your dog the proper dosage.
Medicine | Dog Weight | Daily Dosage | Frequency |
Zyrtec | 5 lbs | 2.5 mg | Once (evening) |
Zyrtec | 10 lbs | 5 mg | Once (evening) |
Zyrtec | 15 lbs | 7.5 mg | Once (evening) |
Zyrtec | 20 lbs | 10 mg | Once (evening) |
Zyrtec | 25 lbs | 12.5 mg | Once (evening) |
Zyrtec | 30 lbs | 15 mg | Once (evening) |
Zyrtec | 35 lbs | 17.5 mg | Once (evening) |
Zyrtec | 40 lbs | 20 mg | Once (evening) |
Zyrtec | 45 lbs | 20 mg | Once (evening) |
Zyrtec | 50 lbs | 20 mg | Once (evening) |
Zyrtec | 55 lbs | 20 mg | Once (evening) |
Zyrtec | 60 lbs | 20 mg | Once (evening) |
Zyrtec | 65 lbs | 20 mg | Once (evening) |
Zyrtec | 70 lbs | 20 mg | Once (evening) |
Zyrtec | 75 lbs | 20 mg | Once (evening) |
Zyrtec | 80 lbs | 20 mg | Once (evening) |
Zyrtec | 85 lbs | 20 mg | Once (evening) |
Zyrtec | 90 lbs | 20 mg | Once (evening) |
Zyrtec | 95 lbs | 20 mg | Once (evening) |
Zyrtec | 100 lbs | 20 mg | Once (evening) |
Zyrtec | 100+ lbs | 20 mg | Once (evening) |
Zyrtec typically starts working within 30 minutes and provides 24 hours of relief from allergies for your dog.
Zyrtec is an antihistamine that can be used to relieve allergy symptoms in dogs. It works by blocking histamine receptors, which reduces the amount of histamine that is produced in the body. Histamine is a substance that is released during an allergic reaction and can cause itching, redness, and swelling. Zyrtec can be given to dogs orally or topically, and the dosage will depend on the size of the dog.
It is important to give the proper dosage of Zyrtec to your dog because too much of the medication can cause side effects such as drowsiness, dry mouth, and vomiting.
How Often Can I Give My Dog Zyrtec?
Zyrtec is a medication that is used to treat allergies in humans. It can also be used for dogs who suffer from allergies. The recommended dosage for dogs is 0.5 mg per pound of body weight. This means that a 50-pound dog would need 20 mg of Zyrtec every day. Zyrtec can be given to the dog either once or twice a day, depending on the severity of the allergies but not to exceed 20 milligrams per day.
Zyrtec can be given to dogs once or twice a day, depending on the severity of the allergy. However, the most you can give your dog is 20 milligrams of Zyrtec in a 24 hour period.
It is important to note that Zyrtec should not be given to puppies who are younger than 12 weeks old. Additionally, pregnant or nursing dogs should not take Zyrtec.
You can give your dog Zyrtec either once or twice a day. The usual dose is 0.50mg/lb once daily or 0.25mg/lb twice daily. Give it to your dog with food to reduce the chances of an upset stomach. If you’re using chewable tablets, make sure your dog chews them thoroughly before swallowing.
In most cases, Zyrtec is a safe and effective medication for dogs who suffer from allergies. However, as with any medication, there are potential side effects that could occur. The most common side effects of Zyrtec in dogs include drowsiness and dry mouth.
In rare cases, more serious side effects may occur, such as vomiting or diarrhea. If you notice any of these side effects in your dog after giving them Zyrtec, it is best to consult with a veterinarian right away.
Will Zyrtec Help My Dogs’ Itching?

Yes. Zyrtec is an antihistamine that can be used to help relieve your dogs’ itching. It works by blocking histamines, which are the chemicals that cause allergic reactions. Zyrtec is available in both tablet and liquid form, and it can be given to dogs older than 12 weeks.
There are a few reasons why dogs may itch due to allergies. One reason is that they may be allergic to something in their environment, such as pollen or mold. Another reason is that they may be allergic to something in their food.
Lastly, some dogs are simply born with sensitive skin that is prone to allergies. Regardless of the cause, itchy skin can be very uncomfortable for your dog and can lead to other problems if not treated properly.
Zyrtec (cetirizine) is a second-generation antihistamine that works by blocking histamine receptors. Histamines are responsible for many allergy symptoms, such as itching, runny nose, and sneezing. Zyrtec is available over the counter in tablet form and is also flavored to make it easier to give to your dog.
Even though you don’t need a prescription from a veterinarian for Zyrtec, there are a few things to consider before giving it to your dog.
First, check with your veterinarian to make sure that Zyrtec is appropriate for your dog’s allergies. Second, be aware that Zyrtec can cause drowsiness in some dogs. If you’re considering giving your dog Zyrtec, talk to your vet about the best way to do it. Third, remember that Zyrtec is not a cure-all for allergies; it’s simply a way to help manage them.