
Felisyl Immune System Support
- Notice
- Description
- Ingredients
- Directions
- Reviews
Notices
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Description
Felisyl® is a supplement that contains the amino acid L-Lysine for use in cats and kittens for conditions responsive to L-Lysine. L-Lysine is an essential amino acid, which means that your cat’s body needs it, but can’t produce it, so this supplement is a perfect choice to provide that necessity.
L-Lysine HCL Immune System Support for Cats helps keep your cat healthy by supporting the immune system naturally so that it can function normally and produce antibodies. Felisyl L-Lysine HCL Immune System Support for Cats also helps maintain healthy tissue, supports respiratory health, and may even help with your cat’s vision. The L-Lysine is in palatable poultry, and the flavored fish base was making these granules easy to give to your cat, sprinkle over or mix with food.
Ingredients
Guaranteed Analysis
Gel (Per Teaspoon - 6 g)
| Nutrient Content | |
|---|---|
| * All values are minimums unless otherwise stated. | |
| Crude Protein (min.) | 4.52% |
| Crude Protein (max.) | <0.75% |
| Crude Fat (min.) | 19.54% |
| Moisture (max.) | 74.27% |
Calorie Content: 2,000 kcal/kg (12 kcal per teaspoon)
Granules (Per Scoop (660 mg))
| Nutrient Content | |
|---|---|
| moisture (max) | 1.1% |
| L-Lysine HCI | 78% (500mg) |
Chews (Per Chew - 1.5g)
| Nutrient Content | |
|---|---|
| Moisture (max.) | 11.1% |
| L-Lysine | 250 mg |
Ingredients
Gel Ingredients:
Water, L-Lysine Monohydrochloride, Stearic Acid, Soybean Oil, Cetyl Alcohol, Lecithin, Salmon Flavor, Methylparaben (Preservative), Potassium Sorbate (Preservative), Sodium Benzoate (Preservative), Carboxymethylcellulose, Ascorbic Acid, Xanthan Gum.
Granule Ingredients:
L-lysine, Proprietary Blend of Poultry and Fish Flavoring, and Beet Sugar
Chew Ingredients:
L-Lysine, natural chicken liver flavor, oat flour, rye flour, soy lecithin, brewer's dried yeast, water, arabic gum, glycerin, canola oil, maltodextrin, sodium alginate, calcium sulfate, oatmeal, dried citrus pulp, sorbic acid (preservative), propionic acid (preservative), mixed tocopherols (preservative), citric acid (preservative), rosemary extract, silicon dioxide, vegetable oil.
Directions
Directions for Use
Felisyl L-Lysine Immune System Support is available in gel, granule, and chew form, offering flexible administration for cats and kittens. Follow the dosage recommendations below or as advised by your veterinarian:
- Gel:
- For kittens under 6 months: 1/4 teaspoon twice daily
- For cats 6 months and older: 1/2 teaspoon twice daily
- Granules:
- Approximately 250 mg of L-Lysine per rounded scoop (322 mg)
- Kittens under 6 months: 1/2 scoop twice daily
- Cats 6 months and older: 1 scoop twice daily
- Chews:
- For kittens: 1 chew daily
- For cats 6 months and older: 2 chews daily


