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| Management number | 204568157 | Release Date | 2025/10/14 | List Price | $19.19 | Model Number | 204568157 | ||
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Vetoquinol Viralys Powder is a veterinary-formulated oral L-Lysine supplement specifically designed to support feline immune system health, respiratory function, and eye comfort. Ideal for cats and kittens aged 6 weeks and older, this palatable fish & poultry-flavored powder helps manage common symptoms associated with feline herpesvirus (FHV-1) — a major cause of upper respiratory infections and eye inflammation in felines.
The product contains L-Lysine Hydrochloride, an essential amino acid known to inhibit the replication of FHV-1, while also helping to maintain a strong immune response and reduce viral flare-ups in multi-cat households or shelter environments.
Viralys Powder offers both preventive and supportive care for cats prone to feline respiratory and ocular issues:
Always consult your veterinarian for exact dosage instructions depending on your pet's condition.
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Ingredient |
Purpose |
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L-Lysine Hydrochloride |
Immune and viral support |
L-Lysine Hydrochloride: A bioavailable form of lysine, an essential amino acid that helps block arginine — a key element needed by FHV-1 to replicate.
Viralys L-Lysine is generally well tolerated. However, mild side effects may include:
Discontinue use if adverse reactions occur and consult your veterinarian.
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