If your dog suffers from allergies, first consult with a vet to determine which form of allergies your dog suffers from.  Consulting with your vet also helps you to select which are the best   and most effective anti-histamine drugs to use. Allergies can weaken the immune system of the dogs. It is thereby crucial to administer anti-histamine in case your dog shows signs of allergies. Current day antihistamine are safe to use and do not bring as much side effects as it was in the past.


For treating airborne allergies this is the best medication for your dog. This antihistamine medication is effective especially when controlling itching and minimizing swelling on the body of the dog.  Consult your vet for the recommended dosage of this medication.  To effectively treat your dog from the allergies, ensure that the Benadryl you obtain contains diphenhydramine instead of alcohol. This is because alcohol can impede recovery in your dog.


Available in forms of tablet, capsule or syrup form, this drug is meant to treat allergic reactions.  If your dog experiences allergic reactions in the form of itching, then this is the drug to administer. However, it is unsafe for some dogs with a certain health condition therefore you should always consult with your vet first. The recommended dosage may differ therefore it is important to follow the instructions and consult with a vet. It does not cause signs of drowsiness in dogs either thereby qualifying to be used as slight sedation.

Hydroxyzine or atarax

Hydroxyzine is commonly referred to as atarax and it is majorly used to treat skin allergies. This is an allergy relief medication and treats itching, atopy and other diseases. Healthy dogs that show allergy reactions can be treated with hydroxyzine as anti-histamine. However, if your dog has sensitivity to antihistamine, heart disease or high blood pressure, then do not administer this antihistamine drug. Pregnant or nursing dogs are not to be treated using this antihistamine because it may tamper with the normal body processes. The dosage should be confronted from the vets before administering to avoid cases of under usage or over usage.


This is an antihistamine that can be used to treat allergic reactions in dogs like swelling and itching. When administered in accordance to the vet’s instructions, this antihistamine is effective and safe. All animals but those with known hypersensitivity to it can use this antihistamine. Dogs with known physical complications such as lung disease, high blood pressure and blood disease should not use this antihistamine.

In Summary

Before administering any form of antihistamine to your dog, it is important to take note of the dos and don’ts of that drug. Consulting your vet is advisable in case your dog has a certain health condition to confirm the right amount of dosage as well as the best antihistamine to administer to your dogs.