AmericanaPetLawn & GardenTruck & AutomotiveClothingPoultryHeating & CoolingHorseSporting GoodsOutdoor Power EquipmentFencing & GatesLivestockOutdoor LivingPet & Animal PharmacyToolsHome ImprovementFarm & RanchBoots & ShoesTrailers & TowingHome Decor & FurnitureWild Birds & WildlifeToysGift CardsServices Propane RefillTrailer RentalGarden CenterFeed CenterSame Day DeliveryPetVet ClinicPet WashGrooming at PetsenseDog Training at PetsenseTractor Supply RxPet InsuranceWag!

"Savings and Offers"

Weekly AdSaleClearance

"More Options"

Weekly AdWhat's NewTractor Supply AppEarn Rewards with Neighbor's ClubHometown HeroesLife Out Here BlogTSC Exclusive BrandsTop BrandsClearance ItemsBattery FinderOutdoor Power Equipment Parts FinderHitch Finder

Memorial Day Savings are here

|
Shop Now

Spend $49.99 to unlock Free Delivery on most orders

|
Learn More
Order statusTSC Credit CardsWhat’s newPetsenseWeekly Ad
​

Sign In / Enroll

Get rewarded!


Online pet pharmacy banner
Online pet pharmacy banner

Cat Allergy & Immune System

  1. Home
  2. /

  3. Pet
  4. /

  5. Cat
  6. /

  7. Cat Health & Wellness
  8. /

  9. Cat Vitamins & Supplements
  10. /

  11. Cat Allergy & Immune System

{"store_id":2314,"page_number":1,"category":"Pet>Cat>Cat Health & Wellness>Cat Vitamins & Supplements>Cat Allergy & Immune System","keywords":"cat-allergy-immune-system","item":"227378799,242621499,159902999,141108799,607265399,254399099,254323999,605513999,110562199,254333399,139765999,254398899,153190899,254324099,254332199,254412399,254326199,254384599,254327699,254363299,254399199","filters":[],"availability":"","price":"","id":""}
Pickup
Delivery

Smart Supply eligible

Auto order and save everyday

Sort by Most Popular

Pickup
Delivery

Cat Allergy & Immune System (21)

Zesty Paws Allergy & Immune Bites for Cats, Bacon, 60 ct.
Zesty Paws Allergy & Immune Bites for Cats, Bacon, 60 ct.

Zesty Paws Allergy & Immune Bites for Cats, Bacon, 60 ct.

3.9

(213)

$17.47

$17

.47

Pet Honesty Dual Texture Immune Support Lysine for Cats
Pet Honesty Dual Texture Immune Support Lysine for Cats

Pet Honesty Dual Texture Immune Support Lysine for Cats

3.7

(169)

$16.99

$16

.99

NaturVet Mushroom Max Advanced Immune Support Soft Chews for Dogs and Cats
NaturVet Mushroom Max Advanced Immune Support Soft Chews for Dogs and Cats

NaturVet Mushroom Max Advanced Immune Support Soft Chews for Dogs and Cats

4.6

(124)

$29.99-
$47.99

$29

.99

-

$47

.99

HomeoPet Feline Nose Relief, 15 mL
HomeoPet Feline Nose Relief, 15 mL

HomeoPet Feline Nose Relief, 15 mL

4.3

(6)

$19.49

$19

.49

Zesty Paws Cat 8 in 1 Multivitamin Mousse 3 oz. Tube
Zesty Paws Cat 8 in 1 Multivitamin Mousse 3 oz. Tube

New!  Zesty Paws Cat 8 in 1 Multivitamin Mousse 3 oz. Tube

4.3

(282)

$12.99

$12

.99

Rebound Recuperation Formula for Cats, 5.1 oz.
Rebound Recuperation Formula for Cats, 5.1 oz.

Rebound Recuperation Formula for Cats, 5.1 oz.

5.0

(1)

$19.49

$19

.49

Vetoquinol Viralys Oral Gel Supplement for Cats, 5 oz.
Vetoquinol Viralys Oral Gel Supplement for Cats, 5 oz.

Vetoquinol Viralys Oral Gel Supplement for Cats, 5 oz.

5.0

(4)

$26.99

$26

.99

Nutramax Imuquin Immune Support Supplement for Cats, 30 Sprinkle Capsules
Nutramax Imuquin Immune Support Supplement for Cats, 30 Sprinkle Capsules

Nutramax Imuquin Immune Support Supplement for Cats, 30 Sprinkle Capsules

0.0

(0)

$19.99

$19

.99

Pet Naturals L-Lysine Soft Chews for Cats, 60 ct.
Pet Naturals L-Lysine Soft Chews for Cats, 60 ct.

Pet Naturals L-Lysine Soft Chews for Cats, 60 ct.

4.7

(13)

$12.35

$12

.35

VetriScience Vetri-DMG Immune Health Liquid Supplement for Cats and Dogs, 114 mL
VetriScience Vetri-DMG Immune Health Liquid Supplement for Cats and Dogs, 114 mL

VetriScience Vetri-DMG Immune Health Liquid Supplement for Cats and Dogs, 114 mL

4.4

(8)

$28.31

$28

.31

VetriScience Vetri Lysine Plus Bite-Sized Chews for Cats, 90 ct.
VetriScience Vetri Lysine Plus Bite-Sized Chews for Cats, 90 ct.

VetriScience Vetri Lysine Plus Bite-Sized Chews for Cats, 90 ct.

4.0

(41)

$20.99

$20

.99

Rebound Recuperation Formula for Dogs, 5.1 oz.
Rebound Recuperation Formula for Dogs, 5.1 oz.

Rebound Recuperation Formula for Dogs, 5.1 oz.

5.0

(1)

$19.49

$19

.49

VetriScience Vetri Lysine Plus Bite-Sized Chews for Cats, 120 ct.
VetriScience Vetri Lysine Plus Bite-Sized Chews for Cats, 120 ct.

VetriScience Vetri Lysine Plus Bite-Sized Chews for Cats, 120 ct.

4.0

(15)

$24.99

$24

.99

Viralys L-Lysine Supplement Powder for Cats
Viralys L-Lysine Supplement Powder for Cats

Viralys L-Lysine Supplement Powder for Cats

5.0

(1)

$31.99-
$129.99

$31

.99

-

$129

.99

VetriScience Lysine Complete Immune Support Powder for Cats, 2.75 oz.
VetriScience Lysine Complete Immune Support Powder for Cats, 2.75 oz.

VetriScience Lysine Complete Immune Support Powder for Cats, 2.75 oz.

0.0

(0)

$29.00

$29

.00

Optixcare L-Lysine Chews for Cats, 60 ct.
Optixcare L-Lysine Chews for Cats, 60 ct.

Optixcare L-Lysine Chews for Cats, 60 ct.

5.0

(1)

$19.99

$19

.99

Showing1-21of 21 items

  • 1

Items per page:50|100|150|200

Compare

Add up to 4 items

Related Categories

  • Small Animal Hay
  • Small Animal Chew Toys
  • Small Animal Hideouts
  • Small Animal Food
  • Small Animal Treats
  • Small Animal Habitats
  • Cat Dander Treatment
  • Dog Food For Immune System
  • Allergen Reducing Cat Food
  • Immune System Support for Dogs
  • Allergen Air Filters
  • Dog Supplements For Itchy Skin
  • Dog Food For Allergies
  • Cat Anxiety Relief Products

Related Articles

  • Give Pets Much-Needed Seasonal Allergy Relief with These Solutions

    Give Pets Much-Needed Seasonal Allergy Relief with These Solutions

  • Vaccinating Cats and Dogs

    Vaccinating Cats and Dogs

  • Animal Medication for Cats and Kittens

    Animal Medication for Cats and Kittens

  • Barnyard Cat Health

    Barnyard Cat Health

Get the top deals, latest trends and more
Sign up for emails from Tractor Supply today.
First Name*
Last Name*
Email*

Customer Support

  • Order Status

  • Return Policy

  • Delivery Options

  • Tax Exemptions

  • Frequently Asked Questions

  • Contact Us

  • Recall Notices

  • Call:  

    (877) 718-6750

  • Mon - Sat: 7am - 9pm CT

  • Sun: 8am - 7pm CT

  • Closed Christmas Day

About Us

  • Who We Are

  • Investor Relations

  • Stewardship

  • Community

  • Military Support

  • Product Catalog

  • Tractor Supply Stores

  • .Pharmacy Verified Website

Work With Us

  • Careers

  • Sponsorship

  • Affiliate Program

  • Potential Vendor Partners

  • Vendor Information

  • Tractor Supply Media Network

Neighbor's Club

  • About

  • Rewards

  • Hometown Heroes

  • Frequently Asked Questions

  • Terms & Conditions

Credit Center

  • TSC Credit Card

  • Klarna

Stay Connected

Connect & Share with the Tractor Supply Community.

Tractor Supply App

Shop on the go with the Tractor Supply App

Learn More

Stay Connected

Connect & Share with the Tractor Supply Community.

Tractor Supply App

Shop on the go with the Tractor Supply App

Learn More
  • Order Status

  • Return Policy

  • Delivery Options

  • Tax Exemptions

  • Frequently Asked Questions

  • Contact Us

  • Recall Notices

  • Call:  (877) 718-6750

  • Mon - Sat: 7am - 9pm CT

  • Sun: 8am - 7pm CT

  • Closed Christmas Day

  • Who We Are

  • Investor Relations

  • Stewardship

  • Community

  • Military Support

  • Product Catalog

  • Tractor Supply Stores

  • .Pharmacy Verified Website

  • Careers

  • Sponsorship

  • Affiliate Program

  • Potential Vendor Partners

  • Vendor Information

  • Tractor Supply Media Network

  • About

  • Rewards

  • Hometown Heroes

  • Frequently Asked Questions

  • Terms & Conditions

  • TSC Credit Card

  • Klarna

Connect & Share with the Tractor Supply Community.

Shop on the go with the Tractor Supply App

Learn More
  • Privacy policy
  • Your Privacy Choices
  • Terms and Conditions
  • California Transparency Act
  • Legal Notices
  • Accessibility
  • Responsible Disclosure Statement
  • Surprise (Balance) Medical Billing Disclosure
  • Transparency in Coverage
  • Human Rights Policy
  • Vendor Code of Conduct
  • California Notice of Collection
  • Privacy Requests

© 2026, Tractor Supply Co. All Rights Reserved.

Sign in for a better experience

Unlock deals, rewards & more.