---
product_id: 8179751
title: "Enisyl-F - Lysine Supplement for Cats - Daily Immune Support - Everyday Feline Health Support - Tasty Oral Paste - Tuna Flavor, 3.5oz Pump"
brand: "vetoquinol"
price: "$96.13"
currency: USD
in_stock: true
reviews_count: 13
category: "Vetoquinol"
url: https://www.desertcart.us/products/8179751-enisyl-f-lysine-supplement-for-cats-daily-immune-support-everyday
store_origin: US
region: United States of America
---

# Tasty tuna flavor cats love 500mg L-Lysine per 1mL pump Daily immune & respiratory support Enisyl-F - Lysine Supplement for Cats - Daily Immune Support - Everyday Feline Health Support - Tasty Oral Paste - Tuna Flavor, 3.5oz Pump

**Brand:** vetoquinol
**Price:** $96.13
**Availability:** ✅ In Stock

## Summary

> 🐾 Boost your cat’s daily defense with a tasty twist!

## Quick Answers

- **What is this?** Enisyl-F - Lysine Supplement for Cats - Daily Immune Support - Everyday Feline Health Support - Tasty Oral Paste - Tuna Flavor, 3.5oz Pump by vetoquinol
- **How much does it cost?** $96.13 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/8179751-enisyl-f-lysine-supplement-for-cats-daily-immune-support-everyday)

## Best For

- vetoquinol enthusiasts

## Why This Product

- Trusted vetoquinol brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Flavor-First Formula:** Irresistible tuna taste ensures stress-free, mess-free administration every time
- • **Trusted & Transparent:** Backed by rigorous standards and 4.4-star reviews for everyday feline vitality
- • **Effortless Application:** Clean pump dispenser allows direct oral dosing or easy nose/paw application
- • **Vet-Recommended Precision:** Delivers exact 500mg L-Lysine twice daily for optimal feline immune health
- • **Multi-Dimensional Wellness:** Supports respiratory comfort and healthy eyes for active and indoor cats alike

## Overview

Vetoquinol Enisyl-F is a 3.5oz tuna-flavored oral paste supplement delivering 500mg of L-Lysine per pump to support cats’ immune, respiratory, and eye health daily. Vet-recommended and easy to administer, it’s designed for both kittens and adult cats to maintain vibrant, active lifestyles with a flavor cats eagerly accept.

## Description

desertcart.com : Vetoquinol Enisyl-F - Lysine Supplement for Cats - Daily Immune Support - Everyday Feline Health Support - Tasty Oral Paste - Tuna Flavor, 3.5oz Pump : Pet Dental Care Supplies : Pet Supplies

Review: Helps with Allergies for Cats - We use this for our cat (recommended by our veterinarian) for allergies. Product works great.
Review: Only one tuna flavored - This is the only one our cat will take because it is tuna flavor. She hates the cheaper tube ones. But it is exoensive

## Features

- Daily Immune System Support: Enisyl-F Oral Paste is a cat wellness supplement that provides targeted immune system and feline health support as part of your cat’s daily routine
- Respiratory & Eye Health Support: This cat health supplement supports respiratory comfort and healthy eyes, providing reliable health support for indoor and active pets
- Convenient & Vet-Recommended Oral Paste: Enisyl-F delivers veterinarian-recommended amount of L-lysine HCL, which for cats is 500 mg 2x daily and for kittens is 250 mg 2x daily
- Tasty Tuna Supplement: Made with a tasty tuna flavor that cats eagerly accept, the oral paste can be administered directly by mouth or easily applied onto your cat’s nose or paws; the pump dispenser offers clean administration without stress or mess
- Everyday Health for Pets: Made with a commitment to transparency, rigorous review, and dependable standards, every product we create supports happier and healthier moments for your pet

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B003U2I87W |
| Active Ingredients | Active ingredients per 1mL pump (1g): L-Lysine Hydrochloride, 250mg. Inactive ingredients: Caramel Color, Citric Acid, Fish Oil, Lecithin, Potassium Sorbate, Purified Water, Silica Aerogel, Sorbitol, Soybean Oil, Tuna Flavor, Xanthan Gum. Active Ingredients Active ingredients per 1mL pump (1g): L-Lysine Hydrochloride, 250mg. Inactive ingredients: Caramel Color, Citric Acid, Fish Oil, Lecithin, Potassium Sorbate, Purified Water, Silica Aerogel, Sorbitol, Soybean Oil, Tuna Flavor, Xanthan Gum. See more |
| Best Sellers Rank | #16,171 in Pet Supplies ( See Top 100 in Pet Supplies ) #32 in Cat Multivitamins |
| Brand | Vetoquinol |
| Brand Name | Vetoquinol |
| Customer Reviews | 4.4 out of 5 stars 1,404 Reviews |
| Flavor | Flavor,Tuna |
| Global Trade Identification Number | 03605874102408 |
| Item Form | 33. Paste |
| Item Volume | 3.38 fluid ounces |
| Item Weight | 3.52 ounces |
| Manufacturer | Vetoquinol |
| Manufacturer Part Number | IWM031913 |
| Model Number | IWM031913 |
| Number of Items | 1 |
| Specific Uses For Product | Active |
| Target Species | Cat |
| UPC | 030521216208 |
| Unit Count | 3.4 Fluid Ounces |
| Volume | 3.38 fluid ounces |

## Product Details

- **Brand:** Vetoquinol
- **Flavor:** Flavor,Tuna
- **Item Form:** 33. Paste
- **Item Weight:** 3.52 ounces

## Images

![Enisyl-F - Lysine Supplement for Cats - Daily Immune Support - Everyday Feline Health Support - Tasty Oral Paste - Tuna Flavor, 3.5oz Pump - Image 1](https://m.media-amazon.com/images/I/51xuMCbMNkL.jpg)

## Questions & Answers

**Q: Is the bottle recyclable?**
A: I examined the container and there is no indication that it can be recycled. It does not have the "triangle" logo on the bottom of the container indicating it can be recycled.

**Q: is a syringe furnished with this product?**
A: No, the product is a thick jell. The pump mechanism works to deliver a small amount with each push. I put two 'pumps' on my fingers and both cats enjoy their treat. They lick my fingers clean.

**Q: Do i need to refrigerate?**
A: No refrigeration is required.

**Q: how many for price?**
A: No

## Customer Reviews

### ⭐⭐⭐⭐⭐ Helps with Allergies for Cats
*by M***Y on August 7, 2026*

We use this for our cat (recommended by our veterinarian) for allergies. Product works great.

### ⭐⭐⭐⭐⭐ Only one tuna flavored
*by K***S on August 13, 2026*

This is the only one our cat will take because it is tuna flavor. She hates the cheaper tube ones. But it is exoensive

### ⭐⭐⭐⭐⭐ Great great product for Upper Respiratory Infection
*by V***T on August 2, 2021*

I ordered this late in the evening last night and received it late morning, thanks Amazon prime. My 17 year old cat got an upper respiratory infection. It started out as just sneezing but last night stopped eating and drinking watering eyes. Vet was closed so I read all the reviews for other supplements offered. This was the most expensive but bigger in size for gels or paste. Booboo does not eat wet food or treats so I needed this kind. Gave it to him as soon as I received it. Pump worked perfect and I put it just under his nose. He licked it up right away. I thought the smell was bad, but I wasn't eating it. Second pump put in his mouth no problem. Well by 4 pm today he got up and ate/drank and was not sneezing constantly. Gave him his night doses at 8:30pm. He only sneezed twice, no tearing and is out off my bed and cuddling by me. Will keep giving him a the week to make sure he is totally ok. This saved me a trip to emergency vet and from other reviews is cheaper here than from the vets office who recommended this to others. Great product and thank you for getting my geriatric kitty back to health in one day. Sorry for the length but wanted people to know how great this worked for Booboo as URI is serious when they stop eating and drinking and they r so stuffed up. All clear now yeah. Update:. I gave the paste to him for 5 days to make sure the URI was totally gone. He was asymptomatic after 3.5 days. Hasn't had a reoccurrence since and not one sneeze or eye watering either. Still have lots just in case.

## Frequently Bought Together

- Vetoquinol Enisyl-F Oral Paste: L-Lysine Supplement for Cats - Tuna Flavor, 3.5oz (100mL) Pump
- Vetoquinol Enisyl-F Lysine Bites: L-Lysine Chews for Cats & Kittens - Chicken Liver-Flavor, 6.4oz (180g) Recloseable Bag
- Vetoquinol Viralys Daily L-Lysine Powder for Cats and Kittens, Fish Flavored Lysine Supplement for Cats and Kittens to Support Immune Health, Normal Eye Function and Respiratory Health, 100gm

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-09-02*