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Feline Immunity Support

The immune system is a complex array of cells that are found throughout the body. Look for these recommended products to help support immune system function and performance in cats.

Click on a brand, treatment, or application and scroll down to see product results.

Advanced Cetyl M for Cats and Dogs
Advanced Cetyl M for Cats and Dogs
Price: $18.97 
Cetyl M Joint & Immune Support For Dogs
Cetyl M Joint & Immune Support For Dogs
Price: $30.95 
Felisyl® Gel
Felisyl® Gel
Price: $14.99 
Felisyl® Granules
Felisyl® Granules
Regular Price: $12.00
 On Sale For: $9.99 
Felisyl® Soft Chews
Felisyl® Soft Chews
Regular Price: $24.99
 On Sale For: $9.99 
Nu-Cat Senior - 120 Bite-Sized Chews
Nu-Cat Senior Bite-Sized Chews
Price: $6.25 
Pala-ZYMES Granules
Pala-ZYMES Granules
Price: $24.95 
ProtectaCell Cancer Support Formula
Price: $17.95 
Vetri-DMG Tablets
Vetri-DMG Tablets
Price: $15.95 
Vetri-Lysine Plus for cats
Vetri-Lysine Plus
Price: $19.95 
Viralys Powder/Gel
Viralys Powder/Gel
Price: $20.00 

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If the item has this emblem, we will gladly match any competitors’ current advertised price.

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Orders over $75 that do not require cooler and overnight delivery qualify for FREE Ground shipping.

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Satisfaction Guarantee

Every purchase you make at is covered by our satisfaction guarantee.

If you are not completely satisfied, please contact us within 30 days.

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Vet-VIPPS Accredited Pharmacy

Heartland Veterinary Supply & Pharmacy is a Vet-VIPPS Accredited Pharmacy

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Located in Hastings, Nebraska, Heartland Veterinary Supply & Pharmacy started as a Veterinary Clinic in 1981, specializing in the health and wellness of the equine, canine and feline species. We have a licensed Veterinarian and Pharmacist on site, as well as a helpful team with the knowledge and products you need to keep your horse, dog or cat healthy and happy. The Heartland Staff is dedicated to fast, courteous service.

"Because buying prescription drugs from the Internet is easy, finding a safe source for those medicines is not."

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  • Phone: 800-934-9398
  • Fax: 888-424-0484
  • Email:
  • HeartLandVetSupply
  • 401 W. 33rd Street
  • Hastings, NE 68901

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