Viralys L Lysine Gel For Cats Medi Vet
COMMENTARY: The results of this study are disappointing for those of us desiring to do more to decrease the frequency and severity of FHV infection. The results of infection for shelter cats, in particular, can be devastating. While in vitro studies have been promising, anecdotal reports have varied in terms of how clinically useful this supplement is. There have also been some concerns about the potential for arginine depletion with long-term use. Still, it remains to be seen whether l-lysine may be beneficial for cats in less intensely stressful environments, and further well-controlled studies would be useful. It would also have been interesting to see whether continuing supplementation after cats developed signs of URI would have affected length and severity of illness.
As a cat owner, you have probably come across the term lysine for cats and may wonder what it is and what benefits it has to offer to your kitty. Lysine is a type of amino acid that is present within the cat’s body.
Feline herpesvirus (FHV) spreads rapidly by direct contact and fomite transmission. Cats in animal shelters are highly susceptible to infection with FHV because of stress and close proximity to other cats. One of several techniques used by shelters to prevent FHV-related upper respiratory infections (URIs) is the empirical treatment of cats with the amino acid supplement l-lysine. l-lysine is believed to work by competing with the virus for arginine, an amino acid necessary for FHV replication. Trials using l-lysine have yielded mixed results. In this study, a clinical trial of cats admitted to a shelter was performed to assess the efficacy of l-lysine supplementation on the development of URI. Healthy cats admitted to the shelter were randomly assigned to receive no treatment (n = 147) or daily supplementation with 250 mg (kittens 5 months of age) of l-lysine (n = 144). Each cat was assessed daily for signs of URI by veterinary assistants blinded to study group. Healthy cats continued to receive l-lysine until adoption. Cats that developed signs of URI were treated by using the shelter's standard protocol, and their l-lysine supplement was discontinued. The study found no differences between the 2 groups in terms of percentage of cats diagnosed with URI; percentage of cats treated for URI requiring more than 1 round of the standard treatment protocol; number of healthy days before diagnosis of URI; or, for cats that did not develop URI, number of healthy days at the shelter. The results suggested that l-lysine supplementation may not be effective in preventing URI in shelter situations.Cat herpes, otherwise known as rhinotracheitis, is an upper respiratory illness that can also potentially affect the eyes. It is an airborne virus, and because of how easily cat herpes spreads, cats that live with other cats in the same household are the most at risk. While L-Lysine supplements are not a direct cure for cat herpes, it has been clinically shown to both decrease a cat's risk of contracting the rhinotracheitis virus, and slow the growth of the infection.SHORT COMMUNICATION: Oral supplementation with L-lysine did not prevent upper respiratory infection in a shelter population of cats. Rees TM, Lubinski JL.
J FELINE MED SURG 10:510-513, 2008.I know it can be a tad bit confusing when you see two different names. It makes you wonder what the differences is. This is the case with lysine in regards to cats. Both are amino acids, and from what I could gather, they have slightly different properties between them.