Home > Shop By Condition > Allergies, Yeast and Skin Problems > Quercetin For Dogs

Quercetin For Dogs
The Best Natural Antihistamine For Dogs With Allergies


A Natural Antihistamine For Dogs

Allergies can make dogs feel miserable, causing symptoms like constant scratching, chewing, licking, hot spots and even hair loss. During allergy season, many dogs end up wearing the "cone of shame" to prevent them from chewing themselves raw. To stay comfortable, some dogs rely on steroids, antibiotics and antihistamines, but these medications can have long-term side effects. That's why many dog owners look for a natural anti-histamine to give their dog relief. Natural remedies for dog allergies, such as quercetin, offer an effective, gentle alternative to relieve symptoms without adverse effects.

Quercetin, a natural bioflavonoid derived from fruits and vegetables, is often referred to as “Nature’s Benadryl” because of its ability to reduce histamine production and inflammation. Veterinarians frequently recommend quercetin for dogs with seasonal allergies, environmental sensitivities, and itching caused by mast cell tumors.

How Quercetin Helps With Dog Allergy Symptoms

Quercetin works by suppressing histamine production and reducing inflammation, making it an excellent choice for dogs suffering from seasonal or environmental allergies. When dogs are exposed to common allergens like pollen or dust, their bodies release histamine, which may cause redness, swelling, and itching. By reducing histamine levels, quercetin for dogs helps relieve these uncomfortable symptoms.

While traditional veterinary treatments like steroids and antihistamines offer temporary relief, they often fail to address the root cause, and symptoms often return once the medication is stopped. Quercetin, on the other hand, supports your dog's immune system for long-lasting natural allergy relief.

How Quercetin Provides Natural Relief For Dog Allergies

Derived from antioxidant-rich fruits and vegetables such as blueberries, apples, and leafy greens, quercetin for dogs is a gentle, all-natural remedy for managing dog allergies. Research shows that quercetin not only reduces histamine but also has anti-inflammatory properties that can alleviate skin irritations, hot spots, and other allergy symptoms in dogs. By reducing the need for prescription antihistamines or steroids, quercetin helps support your dog’s immune system, and is considered one of the best natural remedies for dog allergies.

Allergy Induced Mast Cell Tumors (MCTs)

In addition to relieving seasonal and environmental allergies, quercetin may benefit dogs prone to mast cell tumors, which are the most common type of skin cancer found in dogs. These tumors can appear on the limbs, in between toes or even in organs like the spleen and liver. Mast cells release histamine and other chemicals into surrounding tissues, causing side effects such as digestive issues, skin rashes, and shortness of breath. By naturally managing histamine production, quercetin could help ease these symptoms and support immune health.

Common Allergies in Dogs

An allergy is when your pet's immune system overreacts to a trigger such as pollen. When pets have allergies, their immune system makes substances called antibodies that identify a particular allergen (e.g. dust) as harmful and responds to it. This can cause your pet's skin to become inflamed, itchy and red. The best way to protect your dog from an allergic response is to make sure your pet avoids the allergen, but it can be difficult to identify the allergen.

  • Seasonal Environmental Allergies - Some of the most common causes of seasonal environmental allergies in dogs include dust, dust mites, mold, pollen and grass. These irritants are more prolific during certain times of the year, such as spring and summer.
  • Flea Allergy Dermatitis (FAD) - Flea allergy dermatitis occurs when a dog's immune system is hypersensitive to the antigen or protein in the flea saliva. One flea bite can cause intense itching that can last for days.
  • Food Allergies - Dogs can be allergic to certain foods such as beef, poultry and grains. Feeding a low carbohydrate novel protein diet is helpful for most dogs with allergies. Please include your dog's diet and treats on the order form at checkout and Ask Ariel will provide diet tips for your dog on the packing slip that comes with your order.
  • Other Environmental Allergies - Dogs can also have allergic reactions to many household chemicals, mold and mildew. Scented candles, laundry detergent and dander from other pets can be allergens too. Pets are much more sensitive to airborne particulates, and the exposure can cause breathing problems.

Is Quercetin Safe for Dogs?

Yes, when administered at the appropriate dosage, quercetin is deemed safe for dogs. Many holistic veterinarians recommend quercetin for dogs with allergies because of its safety and efficacy. To administer to your dog, give with meals either in capsule form or by mixing into food. Here are a few things to consider when selecting a safe and effective quercetin supplement for your dog:

  • Look for a product that is third-party tested for purity.
  • Choose a supplement that is made in the United States with US sourced ingredients.
  • Only use the dosages suggested by the manufacturer based on their product's potency.

By following these guidelines, you can ensure that your dog's supplementation of quercetin is safe. Please consult with your veterinarian before using quercetin if your pet is pregnant, lactating, or taking medications.

Where Can I Buy Quercetin For Dogs?

If you're looking for a high-quality quercetin supplement, AllerEaze is an herbal blend of quercetin and nettle leaf, designed for safe and effective allergy relief. Third-party tested and made in the USA, AllerEaze provides a natural approach to managing dog allergies.


AllerEaze For Dogs



Originally published Feb 29, 2024
Updated October 25, 2024
Written by: Susan Davis, Pet Health Nutritionist, CCN
All pet treatment protocols and pet treatment supplements have been reviewed and approved by a veterinarian



Quercetin Frequently Asked Questions (FAQs)

Why is quercetin for dogs called Nature's Benadryl?

Quercetin for dogs is often referred to as nature’s Benadryl due to it’s natural antihistamine properties. Quercetin stabilizes mast cells, reducing histamine production and alleviating allergy symptoms like itching and redness, similar to how Benadryl works - but without the drowsiness or other side effects.

What is the best natural antihistamine for dogs?

Veterinarians widely recommend quercetin as a natural antihistamine for dogs. This natural bioflavonoid, derived from plants, serves as an excellent source of allergy relief for dogs, effectively relieving symptoms like itching, scratching, licking, and chewing.

Is quercetin good for itching dogs?

Quercetin is known for its ability to inhibit the release of histamine, a compound involved in allergic reactions and inflammatory responses. By reducing histamine levels, quercetin may help alleviate itching and inflammation associated with allergies in dogs. Allergies are a common cause of itching in dogs, with triggers ranging from environmental allergens (such as pollen, dust mites, and mold) to food allergies or sensitivities. When a dog is exposed to an allergen, their immune system may overreact, leading to the release of histamine and other inflammatory compounds. This can result in symptoms like itching, redness, swelling, and skin irritation. Quercetin's ability to modulate histamine release can potentially help reduce these allergic symptoms, including itching.

How long can a dog take quercetin?

Quercetin is safe for long-term use but is often given seasonally to address specific allergy triggers. Many dog owners use quercetin during the spring and summer months. Always monitor your dog’s response and adjust as needed.

How much quercetin should I give my dog?

The appropriate dosage of quercetin for dogs can vary based on factors such as the dog's size, weight, and specific health condition. The general dosage guideline is 50 mg of quercetin per 10 pounds of body weight daily.