Viralys L-Lysine Powder Main Uses
Immune System Support: Formulated to support the natural defenses of cats and kittens, particularly those with compromised immune systems.
Respiratory and Ocular Health: Specifically used to manage clinical signs associated with Feline Herpesvirus (FHV-1), such as sneezing, nasal discharge, and conjunctivitis.
Symptom Management: Helps reduce the frequency and severity of viral flare-ups (rhinotracheitis) by inhibiting viral replication.
 
Viralys L-Lysine Powder Active Ingredients
L-Lysine Hydrochloride (USP): Each 0.52g scoop contains 500 mg of L-Lysine HCl.
Mechanism of Action: Lysine is an essential amino acid that is thought to compete with Arginine, which the herpesvirus requires to replicate. By increasing Lysine levels, the virus's ability to multiply is theoretically reduced.
Palatability Base: Includes inactive ingredients such as Brewer’s Dried Yeast and hydrolyzed fish/poultry liver to ensure the powder is accepted by finicky cats.
Preservatives: Contains mixed tocopherols (Vitamin E) to maintain ingredient stability.
 
Viralys L-Lysine Powder Dosage & Administration
Adult Cats (6 months and older): The standard dosage is 1 rounded scoop (500 mg) administered orally twice daily or as directed by a veterinarian.
Kittens (under 6 months): The recommended dosage is 1/2 scoop (250 mg) administered orally twice daily or as directed by a veterinarian.
Administration: The powder is highly palatable and should be sprinkled over dry food or mixed into a small amount of canned (wet) food.
Adjustments: Dosage may be adjusted by a veterinarian based on the severity of the respiratory or ocular symptoms.
 
Viralys L-Lysine Powder Side Effects & Safety
Common Side Effects: Generally well-tolerated, though some cats may experience mild gastrointestinal upset, such as soft stools or a temporary decrease in appetite.
Precautions: Safe use in pregnant cats or those intended for breeding has not been specifically proven.
Safe Duration: Considered safe for long-term daily administration in chronic "sniffer" cats to prevent recurring flare-ups.
 
Viralys L-Lysine Powder Manufacturer Information
Manufacturer: Vetoquinol N.-A. Inc. (Canadian Division).
Official Website: https://www.vetoquinol.ca/
Brand Introduction: Vetoquinol is a leading global animal health company with a major Canadian presence in Lavaltrie, Quebec. They specialize in high-quality veterinary health products (VHPs) and pharmaceuticals. Viralys is one of their flagship feline supplements, designed for ease of use in multi-cat households or for long-term clinical management.