Zyrtec is used to treat allergies in humans, however, there is evidence that it also is helpful for dogs suffering from canine atopic dermatitis. Very few studies have been done on Zyrtec use in dogs, however, early results are promising. It is recommended that you consult your veterinarian before giving any drugs to your dog.
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Zyrtec
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Zyrtec, also known as cetirizine, is used by children and adults to treat such allergy symptoms as sneezing; itchy eyes, nose or throat; and runny or stuffy nose. It comes in many forms. Zyrtec contains an antihistamine and is available in tablet, liquid and gel tab forms. Zyrtec-D adds pseudoephedrine, a decongestant, and is not for use in children younger than 12.
Canine Atopic Dermatitis
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Canine atopic dermatitis affects 15 percent to 30 percent of canines. It is a lifelong skin disease caused by hypersensitivity to various things in the environment. Dogs suffering from dermatitis will scratch and chew excessively, and may exhibit a reddish-brown staining of light-colored fur around the groin, between the toes and in the armpits.
Treatment typically consists of special shampoos and antibiotics along with flea preventatives because fleas will make the itching worse for the dog, according to priory.com.
Zyrtec for Canine Use
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Although there have been limited studies done on the use of Zyrtec in dogs, a few studies have shown that it has a positive effect on animals with allergic skin diseases, such as canine atopic dermatitis, according to the Canadian Veterinary Journal.
In one study of dogs who suffered from CAD, the itching was reduced in four of the 22 dogs that completed the study with relatively few side effects. The drug also is attractive to dog owners because of its once-a-day dosage.
In addition, some anecdotal reports have shown that Zyrtec is useful in treating the itching that is associated with CAD. However, no clinical trials have been done yet.
Side Effects
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Side effects from administration of Zyrtec were very rare, which is favorable in comparison to such antihistamines as doxepin and cyproheptadine. Vomiting and increased salivation were reported in two dogs in the above study.
Other Antihistamines
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A dog can be allergic to things in the air, insects and food products. Many dog owners prefer Benadryl for their pets because of its effectiveness in stopping itching and fighting allergens in the air. According to VetInfo.com, veterinarians recommend a 1mg/lb. dosage.
Other antihistamines for dogs include chlorpheniramine, clemastine and hydroxyzine. Side effects include fatigue and diarrhea. However, hydroxyzine is a more aggressive medication and can cause nausea, fatigue and seizures. A diet high in fatty acids has been shown to improve the dog's response to antihistamines.
It may take a bit of trial and error to find out which antihistamine will work best for your dog.
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