Antihistamines For Dogs: Can I Give A Dog Allegra

Nov 4, 2023 | Dog Health

Allergies can be irritating for humans and pets alike. Dogs of all breeds commonly experience allergic reactions at some point. While certain breeds may be more allergy-prone, no dog is immune. Allergy flare-ups can disrupt a dog’s comfort and health.

The allergy medication Allegra is often prescribed to relieve symptoms in humans. Some vets also prescribe it for dog allergies. But owners reasonably worry about safety risks. We’ll explain Allegra’s effectiveness and safety profile for canine use as research shows the drug can successfully reduce dog allergy symptoms like itching and sneezing. Learn about the most common triggers of dog allergies, what Allegra is, and whether it’s safe to give it to your furry friend. We’ll also cover the proper dosage and possible side effects. Stay informed and keep your pup happy and healthy.


Allegra For Dogs Key Takeaways

Orange Paw Bullet Point  Allegra is a second-generation antihistamine commonly prescribed by veterinarians for dogs with allergies.

Orange Paw Bullet Point  While Allegra is not FDA-approved for use in dogs, it is generally considered safe for use in dogs under veterinary supervision.

Orange Paw Bullet Point  Allegra works by blocking histamine’s action, relieving symptoms like itching, sneezing, and watery eyes.

Orange Paw Bullet Point  It is important to consult a veterinarian for proper dosage and monitor for potential side effects when giving dogs to Allegra or any over-the-counter antihistamines.

What Are The Most Common Triggers Of Dog Allergies?

Allergies In Dogs Symptoms

You may be wondering, what are the most common triggers of dog allergies? Is your dog experiencing seasonal allergies that will eventually go away? Or is it something lurking in their everyday lives requiring allergy medication? Allergic reactions in dogs can be caused by various factors, both environmental and dietary. Environmental triggers such as pollen, dust mites, mold spores, and certain chemicals can lead to allergies. These allergens can cause a range of symptoms in dogs, including runny nose, watery eyes, and itchiness. On the other hand, food allergies are commonly triggered by ingredients such as beef, chicken, dairy, wheat, and soy. It is important to note that atopic dermatitis, a common skin condition in dogs that can lead to hot spots, can also be caused by allergies. To manage these allergies, first-generation antihistamines may be prescribed as a part of the treatment plan. These allergy medications contain an active ingredient that helps alleviate symptoms such as itching, sneezing, and redness. However, it is crucial to consult with a veterinarian before administering any prescription medications to your dog.

What Is Allegra?

If you’re wondering what Allegra is, it is a second-generation antihistamine commonly used to treat allergies in humans and dogs. It contains fexofenadine as the active agent and is available in the form of an oral tablet. Although Allegra has not been FDA-approved for use in dogs, many veterinarians prescribe it for its effectiveness in treating allergic rhinitis in canines. It works by blocking the action of histamine, a substance that is released in response to an allergen, thereby reducing allergy symptoms such as itching, sneezing, and watery eyes. While Allegra does not cure dog allergies, it can provide relief from the uncomfortable symptoms. But it’s important to consult with your vet before giving your dog Allegra, as there may be potential side effects, and the dosage needs to be carefully determined based on your dog’s health and specific needs.


Where Does Allegra Come From?

If you suffer from allergies, Allegra may already be a familiar name. Developed by Sanofi-Aventis, this “second generation” antihistamine is an FDA-approved treatment for humans that has been available in the US since 2000.

Dog licking a dermatological hot spot wound

Is It Safe To Give Allegra To Dogs?

Giving Allegra to dogs is generally considered safe, but it is important to consult with your veterinarian before administering the antihistamine medication. While studies suggest that fexofenadine, the active ingredient in Allegra, is safe for dogs and effective in treating allergy-related itching, it is important to note that data on its use in dogs is limited. Although Allegra works similarly in dogs as it does in humans, there are minor differences. Having proper medical consultation before giving any over-the-counter medications to your dog is crucial. Dogs can react unpredictably to antihistamines, making it difficult to choose the right one. Additionally, antihistamines can be used off-label for other purposes, such as insomnia and motion sickness, but special medical supervision is necessary in such cases.

Is It Safe To Give Allegra D To Dogs?

Using Allegra D, which contains decongestants, on dogs is not recommended as it can have adverse effects on their health. While Allegra itself can be used to treat dogs’ allergies, adding decongestants in Allegra D can harm your furry friends. High doses of decongestants like pseudoephedrine can cause increased heart rate, elevated blood pressure, and other negative side effects in dogs. It is important to avoid giving your dog any medication containing decongestants without a veterinarian’s guidance. Instead, stick to basic formulations of Allegra or other second-generation antihistamines that are safe for dogs. If your dog suffers from allergy symptoms, such as skin irritations or respiratory issues, it’s a good idea to consult your veterinarian for appropriate allergy medicine or other treatment options like allergy shots. As responsible pet parents, prioritizing our beloved pets’ health and well-being is crucial.

Infected or allergic dog scratching and itching its back on ground

Proper Dosage Of Giving Your Dog Allegra

To ensure the proper dosage, consult with your veterinarian before administering Allegra to your dog. They will be able to provide you with the recommended dosage based on your dog’s specific needs. The typical dosage for dogs ranges from 1 to 1.25 mg per pound of body weight, to be given once every 24 hours. However, keep in mind that the dosage may vary depending on factors such as your dog’s body size, age, and any other ailments they may have. Your veterinarian may decide to run a blood test before approving the use of Allegra for pet allergies or skin allergies. The dosage can be given all at once or split into two doses throughout the day. It is important to closely monitor your dog for any potential side effects, such as dry mouth, as with any type of antihistamine. If you notice any serious side effects, contact your veterinarian immediately.

Possible Side Effects Of Giving Your Dog Allegra

Be aware that there are potential side effects when giving your dog Allegra, including drowsiness, dry mouth, and gastrointestinal issues. While Allegra is generally safe for dogs, some canines may experience adverse reactions to any new medications. It is important to monitor your dog closely after giving them Allegra and consult with your health care provider if any concerning symptoms occur. Common side effects may include headaches, indigestion, vomiting, and nausea. But, it’s critical to note that other unknown side effects may not have been discovered yet. It is also important to follow certain precautions when giving Allegra to your dog. Do not give your dog Allegra-D or other versions containing decongestants, as they can harm dogs. Additionally, do not give Allegra to pregnant or nursing dogs, as it may have negative effects on their health.

Yawning brown French Bulldog dog with mouth white open and tongue and teeth

Where Can I Buy Allegra For Dogs?

If you’re considering treating your beloved dog with Allegra, consulting with a vet beforehand is highly advised. While the over-the-counter remedy is available at drugstores, it’s important to ensure that it’s the right option for your furry friend and that the dosage is appropriate. In some cases, veterinarians may offer generic forms of fexofenadine, a key ingredient in Allegra, which can be a more cost-effective option. Plus, the availability of 30 mg and 60 mg tablet doses in generic fexofenadine tablets allows for more precise dosing compared to the larger 180 mg Allegra tablets. As dog owners, keeping the health and well-being of your pet top of mind is always a priority, so don’t hesitate to seek professional advice when it comes to administering any medication.

Alternatives To Allegra

Dog allergies can cause discomfort and distress for your furry friend. Fortunately, there are ways to manage symptoms and provide relief without the use of medication. In addition to frequent bathing and cleaning of bedding, an Omega-3 rich diet can also help alleviate allergies. But, if these remedies alone are not enough, it’s important to talk to your vet about alternatives to Allegra. Various treatments are available, such as Benadryl or corticosteroids, but each dog may react differently. Experiments with different antihistamines under vet guidance can help you find the best solution for your dog’s needs. Don’t let allergies disrupt your dog’s life – work with your vet to find a treatment plan that works.

Allegra For Dogs Frequently Asked Questions

Are There Any Alternative Antihistamines That Can Be Given To Dogs?

Yes, there are alternative antihistamines that can be given to dogs. Consult with your vet to find the best option for your dog’s specific needs and to ensure proper dosage.


Can Allegra Be Used To Treat Other Conditions In Dogs Besides Allergies?

Yes, Allegra can be used to treat other conditions in dogs besides allergies. It is commonly prescribed by veterinarians for skin conditions and itching caused by various reasons.


Are There Any Known Drug Interactions With Allegra And Other Medications Commonly Prescribed To Dogs?

Yes, there are known drug interactions between Allegra and other medications commonly prescribed to dogs. It is important to consult with your veterinarian to ensure the safety and effectiveness of combining medications.


How Long Does It Take For Allegra To Start Working In Dogs?

Allegra typically starts working in dogs within 1 to 2 hours. However, it’s important to consult with a veterinarian before giving your dog any medication, as they can provide the best advice for your pet’s specific needs.


Can Allegra Be Given To Puppies Or Only Adult Dogs?

You can give Allegra to puppies and adult dogs. It is important to follow the recommended dosage based on their weight. Always consult with your veterinarian before administering any medication to your dog.

The Tail End

While Allegra may be safe for humans, giving it to dogs without consulting a veterinarian is not recommended. Dogs have different metabolisms and may react differently to medications. Identifying the underlying cause of your dog’s allergies is important, and working with a professional to find the most appropriate treatment. Always prioritize your dog’s health and well-being by seeking professional advice.

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