SafetyVetImmune News


We place the safety of your cat above all else.

“Safety first”. These are words we hear a lot, perhaps so much that they have lost their meaning. Safety has become a bit of an empty word, one that many of us disregard until it comes to our health and the health of our loved ones. Then, safety becomes a multidimensional concept. This is especially true in medicine, including veterinary medicine. Cat guardians and caregivers have both the responsibility and the obligation to ensure the medication they give to their cats does not pose a health risk.

The safety of our products is our first and foremost commitment to our customers. “Safety first” for us – as with any reputable manufacturer – is the equivalent of the “first, do no harm” veterinary oath. No one should cut corners with safety, under no circumstance.

We at VetImmune® and Sass and Sass, Inc. understand that. It was unthinkable for us to consider releasing a product on the market that would not have undergone rigorous testing first. That is why our very first studies with Polyprenyl Immunostimulant™ (PPI or PI as it is known to many) were… on safety. We tested its safety on cats, dogs, birds, rodents, and other animals.

Why? Because both the USDA and the FDA – the two bodies that can regulate and approve, or ban, medicines for animals – have rigid requirements for the safety of medicinal products and require extended tests on hundreds of animals, both in the laboratory and in owned pets so that the owners and veterinarians will note and report any problems that may occur. Because Polyprenyl Immunostimulant™ is a veterinary biologic (a product derived from living organisms and biological processes), it is regulated by the USDA.

We have tested our product many times.

We tested the safety of Polyprenyl Immunostimulant™ at the laboratory and saw no side effects. We then sent PPI to treat 390 cats in 10 states, across the country, from California to Michigan. The owners and veterinarians gave the cats two doses daily for 15 days and reported to us that (a) some cats disliked the taste (or handling), (b) some cats craved the taste, (c) one cat pooped all over the owner who also happened to be a veterinarian. But not a single one of the 390 cats experienced an adverse health reaction or side effect to the treatment with PPI. Our safety tests met the stringent requirements of the USDA, which agreed our product is safe.

Still, we decided to go one step further by testing PPI on ourselves. Why not, after all? We initially developed PPI for our own cats, and our cats are family. We wanted to make sure we weren’t missing anything and strongly felt that we should not put our cats through treatment we would not consider acceptable or tolerable for us. Polyprenyl Immunostimulant™ is an oral medication, not an injectable one, and we know how delicate feline taste buds are. It is stressful enough for a cat to be sick, no need to add insult to injury by offering a medication that is difficult or painful to administer.

To this day, with every new serial manufactured, it’s safe for animals tested again (and we always taste every new serial ourselves to make sure it’s not going to offend a cat’s finicky palate).

We are happy to say that after twenty years of testing, including seven years on the market, we have no report of PPI-related side effects. On the contrary, our product has a proven track record, backed by extensive testing, hard work, and USDA approval. We are proud to say that we stand behind our product. Safety, with Polyprenyl Immunostimulant™, is not an empty word.