Allergy Supplements & Immune Support for Cats

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VetriScience Vetri-Lysine Plus Chicken Liver Flavored Soft Chews Immune Supplement for Cats, 120 count

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Rated 4.0706 out of 5 stars
836
$17.00Chewy Price
$21.93List Price
$16.15Autoship Price

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Vetoquinol Viralys Powder Immune Supplement for Cats, 3.5-oz

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Rated 4.6462 out of 5 stars
506
$25.49Chewy Price
$24.22Autoship Price

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Vetoquinol Viralys Gel Immune Supplement for Cats, 5-oz
Rated 4.315 out of 5 stars
565
$20.99Chewy Price
$19.94Autoship Price

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HomeoPet Feline Skin & Itch Cat Supplement, 450 drops
Rated 3.8969 out of 5 stars
262
$8.99Chewy Price
$8.54Autoship Price

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Tomlyn Immune Support Powder Immune Supplement for Cats, 3.5-oz tub
Rated 4.5513 out of 5 stars
439
$15.99Chewy Price
$16.49List Price
$15.19Autoship Price

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Vetoquinol Enisyl-F Lysine Bites Chicken & Liver Flavored Soft Chews Immune Supplement for Cats, 6.35-oz bag
Rated 3.7465 out of 5 stars
288
$25.99Chewy Price
$24.69Autoship Price

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Duralactin Feline L-lysine Cat Supplement, 32.5-mL syringe
Rated 4.1503 out of 5 stars
173
$9.95Chewy Price

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Pet Naturals L-Lysine Cat Chews, 3.17-oz, 60 count
Rated 3.752 out of 5 stars
379
$11.25Chewy Price
$10.69Autoship Price

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21st Century Essential Pet L-Lysine Amino Acid Support Soft Chews Cat Supplement, 100 count
Rated 4.1236 out of 5 stars
89
$10.38Chewy Price
$9.86Autoship Price

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Vetoquinol Enisyl-F Paste Immune Supplement for Cats, 100 mL
Rated 4.2143 out of 5 stars
140
$36.99Chewy Price
$35.14Autoship Price

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Nutramax Imuquin Immune Health Support  Powder Cat Supplement, 30 count
Rated 4 out of 5 stars
12
$29.99Chewy Price
$28.49Autoship Price

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Optixcare L-Lysine Cat Chews, 60 count bag
Rated 4.1739 out of 5 stars
92
$13.88Chewy Price
$27.98List Price
$13.19Autoship Price

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Liquid-Vet Itch & Allergy Support Allergy-Friendly Unflavored Cat Supplement, 8-oz bottle
Rated 3.4941 out of 5 stars
85
$11.99Chewy Price
$12.59List Price
$11.39Autoship Price

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HomeoPet Skin & Itch Dog, Cat, Bird & Small Animal Supplement, 450 drops
Rated 3.8 out of 5 stars
105
$6.42Chewy Price
$6.10Autoship Price

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NOW Pets L-Lysine Immune System Support Cat Supplement, 8-oz jar
Rated 4.4835 out of 5 stars
91
$11.19Chewy Price
$15.99List Price
$10.63Autoship Price

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Tomlyn Immune Support Hickory Flavored Soft Chews Immune Supplement for Cats, 30 count bag
Rated 3.9852 out of 5 stars
135
$12.23Chewy Price
$13.99List Price
$11.62Autoship Price

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Dr. Mercola Organic Mushroom Complex Dog & Cat Supplement, 2.1-oz jar
Rated 4.0256 out of 5 stars
39
$19.97Chewy Price
$24.99List Price
$18.97Autoship Price

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Animal Essentials Seasonal Allergy Herbal Formula Dog & Cat Supplement, 1-oz bottle

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Rated 4.0682 out of 5 stars
132
$13.60Chewy Price
$17.00List Price
$12.92Autoship Price

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NaturVet Mushroom Max with Turkey Tail Soft Chews Immune Supplement for Cats & Dogs, 120 count

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Rated 4.2 out of 5 stars
25
$39.99Chewy Price
$37.99Autoship Price

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PetHonesty Lysine Immune Health+ Tuna & Chicken Flavored Powder Immune Supplement for Cats, 4.2-oz bottle
Rated 4.2547 out of 5 stars
106
$24.99Chewy Price
$23.74Autoship Price

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VetriScience Vetri-DMG Liquid Immune Supplement for Dogs, Cats & Birds, 114-mL

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Rated 4.549 out of 5 stars
102
$24.00Chewy Price
$41.78List Price
$22.80Autoship Price

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Vita Pet Life Coco & Luna L-Lysine Immune Support Salmon Flavor Powder Dog & Cat Supplement, 4-oz jar
Rated 4.35 out of 5 stars
20
$19.90Chewy Price
$18.90Autoship Price

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Strawfield Pets L-Lysine Immune Support Cat Supplement, 7-oz jar
Rated 4.3673 out of 5 stars
49
$19.96Chewy Price
$24.99List Price
$18.96Autoship Price

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Nutramax Imuquin Immune Health Support Powder Dog Supplement, 30 count
Rated 5 out of 5 stars
5
$29.99Chewy Price
$28.49Autoship Price

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BIXBI Organic Pet Superfood Immunity Daily Dog & Cat Supplement, 2.12-oz jar
Rated 4.6949 out of 5 stars
59
$12.60Chewy Price
$19.99List Price
$11.97Autoship Price

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VetSmart Formulas Critical Immune Defense Mushroom & Turmeric Compound Dog & Cat Supplement, 6.3-oz bottle, 1 count

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Rated 4.2 out of 5 stars
10
$59.95Chewy Price
$56.95Autoship Price

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NaturVet L-Lysine Plus Antioxidants Soft Chews Immune Supplement for Cats, 60 count
Rated 2.675 out of 5 stars
40
$9.99Chewy Price
$9.49Autoship Price

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Liquid-Vet Itch & Allergy Support Chicken Flavor Cat Supplement, 8-oz bottle
Rated 3.4444 out of 5 stars
36
$11.99Chewy Price
$12.59List Price
$11.39Autoship Price

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Rx Vitamins Rx D3 Liquid Immune Supplement for Cats & Dogs, 2-oz bottle
Rated 4 out of 5 stars
9
$22.00Chewy Price
$20.90Autoship Price

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NaturVet Aller-911 Plus Antioxidants Soft Chews Allergy Supplement for Cats, 60 count

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Rated 2.125 out of 5 stars
96
$11.99Chewy Price
$11.39Autoship Price

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Felisyl Salmon Flavored Gel Immune Supplement for Cats, 5-oz tube
Rated 3.5333 out of 5 stars
15
$11.49Chewy Price

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Fera Pet Organics Mushroom Immune Support Dog & Cat Supplement, 2.12-oz bottle
Rated 4.6667 out of 5 stars
27
$34.95Chewy Price
$33.20Autoship Price

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Rx Vitamins Bio-C Powder Immune Supplement for Cats & Dogs, 4-oz bottle
Rated 4.7143 out of 5 stars
7
$18.00Chewy Price
$17.10Autoship Price

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Zesty Paws Lysine Immune Bites Salmon Flavored Soft Chews Allergy & Immune Supplement for Cats, 60 count
Rated 2.8222 out of 5 stars
135
$14.97Chewy Price
$14.22Autoship Price

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VetriScience Cell Advance 440 Capsules Immune Supplement for Cats & Dogs, 60 count
Rated 4.1739 out of 5 stars
23
$13.00Chewy Price
$20.88List Price
$12.35Autoship Price

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Animal Essentials Mushroom Defense Immune Support Dog & Cat Supplement, 2-oz bottle

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Rated 4.6 out of 5 stars
30
$26.00Chewy Price
$32.50List Price
$24.70Autoship Price

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Allergy Supplements & Immune Support for Cats

Like humans, cats can suffer from seasonal and food allergies. When a cat has allergies, his immune system becomes extremely sensitive to certain everyday substances, and begins identifying them as dangerous. Common allergy symptoms include sneezing, coughing, wheezing, itchy skin, increased scratching, itchy and runny eyes, itchy ears, ear infections, vomiting, diarrhea, snoring, paw chewing and swollen paws. When a cat has an allergy to food, they will often scratch their heads and necks, and suffer from gastrointestinal problems. Food allergies show up as your cat ages, so cat food he's enjoyed for years can begin to cause him problems as he ages. Vetoquinol Viralys L-Lysine Powder Cat Supplement is an allergy supplement. Viralys contains the amino acid L-Lysine. The powder can be sprinkled over your dry cat food or mixed in with a small amount of wet cat food. Viralys can help reduce inflammation of the eyes, conjunctivitis, sneezing, sinus congestion and many other symptoms associated with some cat allergies. NaturVet Aller-911 Allergy Aid Plus Antioxidants are Soft Chews allergy pills that help support your cat's immune system, and combats environmental pollutants. If your cat's food allergies are causing gastrointestinal issues, try cat probiotic supplements from trusted brands like VetriScience. VetriScience Probiotic Everyday Gastrointestinal Health Cat Chews fight the growth of unwanted bacteria, and feed the healthy bacteria that's beneficial to your cat's everyday digestive health. Get allergy support for your cat and help her fight back against the many uncomfortable symptoms associated with seasonal and food allergies. Shop cat allergy medications and immune system supplements on Chewy. Find this and more on Chewy's online pet store where you can find the best cat supplies today!

Related Categories: Cat Skin & Coat Care Supplements, Probiotics for Cats, Calming Medicine for Cats, Dental Supplements for Cats, Joint Supplements & Glucosamine for Cats, Eye Care Supplements for Cats, Nutritional Supplements for Cats, Cat Hairball Paste & Gel, Vitamin & Mineral Supplements for Cats, Kidney Supplements for Cats, Heart & Liver Supplements for Cats, Cat Vitamins & Supplements

Frequently Asked Questions about Allergy Supplements & Immune Support for Cats

What is the best immune support for cats?

The best immune support for cats is a healthy diet and lifestyle, but there are many supplements you can give your cats to help boost immunity, too. Your vet may be able to recommend some good supplements for your kitty, or you can find immune supplements formulated to target specific health issues your cat is having. Chewy has a great selection of immune supplements for cats, including cat allergy supplements, supplements that help cats fighting infections, calming supplements, digestive supplements and more.

What can I give my cat for allergies?

You can give your cat a variety of things for allergies, but you should consult with your vet to get the best guidance and rule out serious health problems first. Depending on what kind of allergies your cat has, your vet may recommend a skin and coat allergy supplement for cats, a respiratory supplement for cats, or an immune supplement with L-lysine, probiotics or other immune-boosting compounds.

How can I boost my cat's immune system?

You can boost your cat's immune system by feeding a healthy diet, encouraging healthy exercise and minimizing stress that can wear your cat's natural defenses down. Cat immune supplements are another way to give your cat's immune system a healthy boost, and there are many types to choose from. Talk to your vet about what immune supplements might be best for your cat and check out the wide range of choices available on our site.

Do cats actually get seasonal allergies?

Many cats do actually get seasonal allergies, and allergies can be as unpleasant for felines as they are for us! The good news is that there are many ways to help cats with seasonal allergies, including medicines and antihistamines prescribed by your vet and over-the-counter cat allergy supplements.


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