Can I Give My Dog Zyrtec Or Cetirizine Hydrochloride For His Allergies?


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Before giving any medication to your pet that is not prescribed by a qualified vet, it is always recommended that you contact your vet first. Give them a call and they should be able to tell you the answer over the phone. Even if a drug is safe to be given to animals, it can be difficult to know what dosage to give, as even the recommended dosage for children could be too much and it will vary considerably depending on the size of your pet.

Dogs can suffer from serious allergic reactions to common allergens such as food, mold or pollen. According to, allergy medications have been shown to control symptoms of allergies in 30 per cent of affected dogs. If the medication is used with other treatment methods, such as eliminating the allergen or adding fatty acids to a dog's diet, that percentage increases.

Cetirizine is an antihistamine more commonly known by the brand name Zyrtec. Zyrtec Two 10mg tablets, broken up into halves or quarters, can be given to your dog throughout the day, but again this does depend on size. Begin with one tablet broken in half to see how they respond. It is possible that it could make your dog tired or lethargic. If it is obvious that they are uncomfortable, discontinue use immediately. If it does not make them uncomfortable, consider just giving them a small dosage before bed time, but consult your vet first.

Cetirizine has been tested on dogs who suffered with dermatitis. Out of the 22 dogs that were tested, it did improve the condition of four dogs. It did, however, make two of the dogs sick immediately and had no effect on the remaining dogs. The dogs were treated with cetirizine hydrochloride, 10mg tablets, during the first two weeks of the trial, followed by a placebo for the second two weeks. The dosage of cetirizine was 1 mg/kg BW, q24h, given PO with or without food.

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