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Top 7 Best Antihistamine for Dogs in 2024

best-antihistamine-for-dogs

Dogs, our faithful pals, face allergies just like humans do. When they come across things like pollen, dust, or fleas, their immune system releases histamines. This can lead to itching, swelling, and redness. Antihistamines assist by blocking the histamines and easing those pesky symptoms.

When it comes to choosing the best antihistamine for dogs, there are several factors to consider. First, it’s important to consult with your veterinarian to determine the underlying cause of your dog’s allergies and to rule out any other potential health issues. Next, you’ll want to consider the type of antihistamine. There are two main types: first-generation and second-generation.

First-generation antihistamines, such as diphenhydramine (Benadryl), have been around for decades and are available over-the-counter. They work by blocking histamines in the brain, which can cause drowsiness and other side effects. Second-generation antihistamines, such as cetirizine (Zyrtec) and fexofenadine (Allegra), are newer and generally have fewer side effects. They work by blocking histamines in the body, which can be more effective for treating skin allergies.

Another important consideration is the dosage and form of the antihistamine. Dosage will depend on your dog’s weight and the severity of their allergies, and it’s important to follow your veterinarian’s instructions carefully. Antihistamines come in various forms, including tablets, capsules, liquids, and even chewable treats. Some dogs may prefer one form over another, so it may take some trial and error to find the right one.

At the end of the day, choosing the best antihistamine for your dog will depend on their individual needs and preferences. We spent hours researching and testing various antihistamines to identify the ones that are safe, effective, and easy to administer. In the following sections, we’ll share our top picks and provide a detailed breakdown of each one.

Best Antihistamines for Dogs

As dog owners, we know how frustrating it can be to watch our furry friends suffer from allergies. Constant scratching, biting, and licking can make both you and your dog miserable. That’s why we’ve compiled a list of the best antihistamines for dogs to help alleviate those pesky allergy symptoms. These antihistamines have been carefully selected based on their effectiveness, safety, and ease of use. So, whether your dog is dealing with seasonal allergies or food sensitivities, we’ve got you covered. Check out our top picks below.

1. PetArmor Antihistamine Allergy Relief for Dogs

If you want to give your furry friend fast relief from itchy skin and insect bites and stings, we recommend trying PetArmor Antihistamine Allergy Relief for Dogs. This at-home treatment is affordable, easy to use, and provides temporary relief from allergies.

Pros

  • The active ingredient in these tablets is the same as in BENADRYL Allergy ULTRATABS.
  • PetArmor Antihistamine Allergy Relief for Dogs is an affordable at-home treatment that can save you a trip to the vet.
  • These tablets are simple and easy to use.

Cons

  • This skin health supplement for dogs only provides temporary relief from allergies.
  • Some dogs may experience side effects after taking these tablets.
  • PetArmor Antihistamine Allergy Relief for Dogs may not be effective for all dogs.

We recently used PetArmor Antihistamine Allergy Relief for Dogs on our furry friend who was suffering from itchy skin due to allergies. We were pleased to see that the tablets worked quickly and provided relief within 30 minutes. The tablets were easy to use and our dog didn’t seem to mind taking them.

One thing to keep in mind is that these tablets only provide temporary relief from allergies. While they can help your dog feel better in the short term, they won’t cure the underlying issue. Additionally, some dogs may experience side effects after taking these tablets, so it’s important to monitor your dog closely after administering them.

Overall, we think PetArmor Antihistamine Allergy Relief for Dogs is a great option for pet owners who want an affordable, at-home treatment for their furry friend’s allergies. While it may not work for every dog, it’s definitely worth a try if your dog is suffering from itchy skin or insect bites and stings.

2. Pro-Sense Itch and Allergy Solutions, 100 count

If you’re looking for a temporary solution to relieve your dog’s allergy symptoms, including itching, runny nose, sneezing, and watery eyes, then Pro-Sense Itch and Allergy Solutions might be a good option. With each chewable tablet containing 25 mg of diphenhydramine HCI, an antihistamine, this product is formulated for use only with dogs weighing 15 pounds or more.

Pros

  • Provides temporary relief for allergy symptoms in dogs
  • Each bottle contains 100 chewable tablets
  • Affordable option for pet owners on a budget

Cons

  • Not recommended for dogs weighing less than 15 pounds
  • May cause drowsiness in some dogs
  • Some dogs may not like the taste of the tablets

We recently used Pro-Sense Itch and Allergy Solutions for our dog who was experiencing allergy symptoms, including itching and sneezing. The tablets were easy to administer and seemed to provide some relief for our dog’s symptoms. However, we did notice that our dog became a bit drowsy after taking the tablets, so we made sure to give them to her when we knew she wouldn’t need to be too active.

Overall, we would recommend Pro-Sense Itch and Allergy Solutions as an affordable and effective option for pet owners looking to provide temporary relief for their dog’s allergy symptoms. As always, be sure to consult with your veterinarian before giving your dog any new medication or supplement.

3. Mighty Petz MAX Dog Allergy Relief Chews

If you’re looking for an effective and natural solution to soothe your furry friend’s seasonal allergies, then Mighty Petz MAX Dog Allergy Relief Chews might be the perfect choice for you.

Pros

  • The chews are rich in probiotics, colostrum, and omega-3, which help maintain healthy skin and coat by enhancing immune system response and supporting digestion and gut health.
  • The supplement supports normal histamine response and soothes issues associated with seasonal allergies like dry and itching skin, paw licking.
  • The natural bacon flavor of the chews is loved by most dogs, making it easy to administer the supplement.

Cons

  • Some dogs might not like the taste of the chews.
  • The supplement might not work for dogs with severe allergies.
  • The package might be too small for large dog breeds.

Our furry friend had been suffering from seasonal allergies for a long time, and we had tried several products before giving Mighty Petz MAX Dog Allergy Relief Chews a try. We were amazed by the results as our dog’s itching and paw licking reduced significantly within a few days of using the supplement. The chews are easy to administer, and our dog loves the natural bacon flavor. We highly recommend this product to any dog owner who wants to provide their furry friend with a natural and effective solution to soothe seasonal allergies.

In conclusion, Mighty Petz MAX Dog Allergy Relief Chews is an excellent choice for dog owners who want to provide their furry friend with a natural and effective solution to soothe seasonal allergies. The chews are rich in probiotics, colostrum, and omega-3, support normal histamine response, and soothe issues associated with seasonal allergies. However, some dogs might not like the taste of the chews, and the supplement might not work for dogs with severe allergies.

4. Zesty Paws Dog Allergy Relief – Anti-Itch Supplement

If you’re looking for an effective antihistamine for your dog, we recommend the Zesty Paws Dog Allergy Relief supplement.

Pros

  • America’s #1 Selling Dog Supplement Brand on Amazon*
  • Contains EpiCor Pets to support natural immune defenses
  • Holistic formula with prebiotic and probiotic blend

Cons

  • May not work for all dogs
  • Expensive compared to other antihistamines
  • Some dogs may not like the taste

We’ve used this supplement for our dog and have seen a noticeable improvement in his allergy symptoms. The soft chews are easy to administer and our dog loves the salmon flavor. The prebiotic and probiotic blend has also helped improve his digestive health.

The Zesty Paws Dog Allergy Relief supplement contains EpiCor Pets, an advanced ingredient that provides vitamins, protein, fiber, polyphenols, and antioxidants that are clinically proven to support natural immune defenses to keep your dog healthy. The formula also contains Colostrum, Quercetin, Vitamin C, and Yucca to support seasonal allergies, immune function, and digestive health.

Each treat features five strains of Probiotics and PreforPro, a premium Prebiotic clinically proven to support healthy gut bacteria and the growth of Probiotic species. Additionally, each chew contains Salmon Fish Oil to provide Omega 3 fatty acids EPA & DHA that provide skin and immune support for dogs.

While the Zesty Paws Dog Allergy Relief supplement may not work for all dogs, we highly recommend giving it a try if your dog suffers from allergies. It may be more expensive than other antihistamines, but the holistic formula and proven results make it worth the investment.

In summary, if you’re looking for an effective antihistamine for your dog that supports immune, histamine, and digestive health, we recommend the Zesty Paws Dog Allergy Relief supplement.

5. Nature Target Dog Allergy Relief Freeze Dried Chews

If you’re looking for an effective antihistamine for your dog’s allergies, Nature Target Dog Allergy Relief Freeze Dried Chews are a great option. These chews are packed with powerful ingredients like colostrum, omega 3, turmeric, quercetin, and bromelain that help relieve seasonal, food, or environmental allergies.

Pros

  • Freeze-dried bites based on real chicken that are approved by picky eaters
  • Contains anti-inflammatory, antihistamine, and antioxidant properties that can help with inflammation, pain, itchiness, and discomfort caused by hot spots, hair loss, excessive sneezing, scratching, paw licking, and chewing
  • Fortified with colostrum, 3 billion probiotics, and digestive enzymes that help build a healthy immune system and make your dog more resistant to allergens

Cons

  • Some dogs may not like the taste of the chews
  • May take some time to see results
  • Not suitable for dogs with certain medical conditions or allergies to specific ingredients

We’ve been using these chews for a few weeks now and have noticed a significant improvement in our dog’s allergies. His scratching has decreased, and his coat looks healthier and shinier. We love that these chews are made with high-quality ingredients and are free of any artificial additives or fillers. Plus, the vacuum-sealed bag and shelf-stable jar make it easy to store and serve.

Overall, we highly recommend Nature Target Dog Allergy Relief Freeze Dried Chews to any dog owner looking for a safe and effective antihistamine for their furry friend.

6. Chlorpheniramine 4mg Tabs – Pet Allergy Relief 100ct

If you are looking for an affordable and effective antihistamine for your dog’s allergies, then Chlorpheniramine 4mg Tabs – Pet Allergy Relief 100ct by ThePetStop is worth considering.

Pros

  • Provides quick relief from itching caused by allergies in dogs.
  • Can also be used for humans.
  • Comes in a pack of 100 tablets, making it a cost-effective option.

Cons

  • May cause drowsiness in some dogs.
  • Not suitable for dogs with certain medical conditions.
  • Should only be used under the guidance of a veterinarian.

We have used Chlorpheniramine 4mg Tabs – Pet Allergy Relief 100ct for our dog’s seasonal allergies and have found it to be effective in providing quick relief from itching and other allergy symptoms. The tablets are easy to administer and are small enough to be hidden in your dog’s food or treats.

However, it is important to note that this medication may cause drowsiness in some dogs, so it should not be given before any activities that require alertness. It is also not suitable for dogs with certain medical conditions, so it is important to consult with your veterinarian before giving this medication to your dog.

Overall, if you are looking for an affordable and effective antihistamine for your dog’s allergies, Chlorpheniramine 4mg Tabs – Pet Allergy Relief 100ct by ThePetStop is definitely worth considering.

7. Bark&Spark Advanced Dog Allergy Itch Relief Chews

If you’re looking for a reliable antihistamine for your dog, Bark&Spark Advanced Dog Allergy Itch Relief Chews might be the perfect solution.

Pros

  • Enhanced formula prevents environmental pollutants, food and seasonal allergies, and ease symptoms like paw licking, itching, chewing & scratching, irritation, bald spots, rashes and hot spots.
  • Dry Itchy Skin Relief+Immune Booster – enhanced with healthy Omega fats, Digestive Probiotics, Colostrum and specially blended nutrients and vitamins, chewable remedy supports canine immunity and boosts defences against allergen.
  • Made in the USA with human grade ingredients, suitable for small and large pets of all breeds and ages, from puppy to senior dogs.

Cons

  • While the product is effective, it may take a few weeks to see noticeable results.
  • Some dogs may not like the taste or smell of the chews.
  • The package may not be resealable, so it’s important to store the chews properly.

In our experience, Bark&Spark Advanced Dog Allergy Itch Relief Chews are a great choice for dog owners looking for a safe and effective antihistamine. The enhanced formula provides relief from a variety of allergies and skin irritations, while also boosting your dog’s immune system. The chews are made with high-quality ingredients and are suitable for dogs of all ages and breeds.

We did notice that it may take a few weeks for the chews to take effect, but once they do, the results are worth the wait. Additionally, some dogs may not be fond of the taste or smell of the chews, so it’s important to monitor your dog’s reaction. Finally, the package may not be resealable, so it’s important to store the chews properly to ensure their effectiveness.

Overall, we highly recommend Bark&Spark Advanced Dog Allergy Itch Relief Chews to any dog owner looking for a reliable antihistamine for their furry friend.

Buying Guide

When it comes to finding the best antihistamine for your dog, there are a few key factors to consider. Here are some things to keep in mind when shopping for antihistamines:

Active Ingredients

The first thing to consider when choosing an antihistamine for your dog is the active ingredient. Different antihistamines use different chemicals to combat allergies, so it’s important to choose one that will work best for your dog’s specific needs. Some common active ingredients in dog antihistamines include:

  • Diphenhydramine
  • Chlorpheniramine
  • Cetirizine
  • Fexofenadine

Dosage

Another important factor to consider is the dosage of the antihistamine. Make sure to follow the instructions carefully and give your dog the correct amount of medication based on their weight. Giving too little medication may not be effective, while giving too much can be dangerous.

Form of Medication

Antihistamines come in various forms, including tablets, capsules, liquids, and even chewable treats. Consider which form of medication will be easiest for you to administer to your dog. If your dog is difficult to give pills to, a liquid or chewable treat may be a better option.

Side Effects

Like any medication, antihistamines can have side effects. Some common side effects include drowsiness, dry mouth, and diarrhea. Be sure to talk to your vet about any potential side effects and how to manage them.

Consult Your Vet

It’s always a good idea to consult with your veterinarian before giving your dog any new medication, including antihistamines. Your vet can help you choose the best antihistamine for your dog’s specific needs and provide guidance on dosage and administration.

Frequently Asked Questions

What is the recommended dosage of Claritin for dogs?

The recommended dosage of Claritin for dogs is 0.2-0.5mg per pound of body weight, given once daily. However, it is important to consult with your veterinarian before administering any antihistamine to your dog, as the dosage may vary depending on the dog’s size and health condition.

Can dogs safely take over-the-counter antihistamines like Zyrtec?

Yes, dogs can safely take over-the-counter antihistamines like Zyrtec, but only under the guidance of a veterinarian. It is important to note that some antihistamines, such as those containing pseudoephedrine, are not safe for dogs and should be avoided.

What are the best allergy medicines for dogs with itchy skin?

The best allergy medicines for dogs with itchy skin are those that contain antihistamines, such as Claritin, Zyrtec, and Benadryl. However, it is important to consult with your veterinarian to determine the best course of treatment for your dog’s specific condition.

Is it safe to give dogs cetirizine hydrochloride for allergies?

Yes, cetirizine hydrochloride is safe for dogs to take for allergies, but only under the guidance of a veterinarian. The dosage and frequency of administration may vary depending on the dog’s size and health condition.

How does Benadryl compare to Zyrtec for treating dog allergies?

Benadryl and Zyrtec are both effective antihistamines for treating dog allergies, but they work in slightly different ways. Benadryl is a sedative antihistamine, which means it can cause drowsiness in dogs, while Zyrtec is a non-sedative antihistamine. It is important to consult with your veterinarian to determine which medication is best for your dog’s specific condition.

Which is more effective for dogs, Apoquel or Zyrtec?

Apoquel and Zyrtec are both effective for treating dog allergies, but they work in different ways. Apoquel is a prescription medication that works by blocking the action of specific molecules involved in the immune response, while Zyrtec is an over-the-counter antihistamine that blocks the action of histamine. It is important to consult with your veterinarian to determine which medication is best for your dog’s specific condition.

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