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Vetoquinol Viralys L-Lysine Supplement for Cats - Cats & Kittens of All Ages - Immune Health - Sneezing, Runny Nose, Squinting, Watery Eyes - Flavored Lysine Powder

4.7 4.7 out of 5 stars 8,528 ratings
Amazon's Choice highlights highly rated, well-priced products available to ship immediately.
Amazon's Choice in Cat Multivitamins by Vetoquinol

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100 Grams

Purchase options and add-ons

Brand Vetoquinol
Flavor Fish & Poultry
Item Form Powder
Active Ingredients amino acid
Item Weight 0.01 Ounces

About this item

  • Daily L-Lysine supplement for cats helps support a strong immune system and eye & respiratory health
  • Helps manage common feline health issues such as sneezing, runny nose and watery, inflamed eyes
  • Lysine powder for cats & kittens provides specially-formulated immune support for as long as needed
  • Cats love the highly-palatable fish and poultry flavor; simple to dose and easy to administer
  • Delivers veterinarian-recommended amount of Lysine: cats = 500mg 2x daily, kittens = 250mg 2x daily

Customer ratings by feature

Easy to dispense
4.6 4.6
Flavor
4.5 4.5
Value for money
4.5 4.5
Scent
4.3 4.3

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Vetoquinol Viralys L-Lysine Supplement for Cats - Cats & Kittens of All Ages - Immune Health - Sneezing, Runny Nose, Squinting, Watery Eyes - Flavored Lysine Powder
Vetoquinol Viralys L-Lysine Supplement for Cats - Cats & Kittens of All Ages - Immune Health - Sneezing, Runny Nose, Squinting, Watery Eyes - Flavored Lysine Powder
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Vetoquinol Viralys Gel L-Lysine Supplement for Cats, 5oz - Cats & Kittens of All Ages - Immune Health - Sneezing, Runny Nose, Squinting, Watery Eyes - Palatable Maple Flavor Lysine Gel
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Price$34.99$19.89$19.99$19.99$15.49-21% $24.49
List:$30.99
Delivery
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Customer Ratings
Flavor
4.5
4.2
4.4
3.6
3.8
4.2
Easy to dispense
4.6
4.6
4.4
3.6
4.6
Value for money
4.5
4.3
3.6
4.3
Scent
4.3
4.3
4.5
3.9
Easy to use
4.5
4.6
4.5
Sold By
ZQUARED
Pet Health Pharma
Under The Weather
Balanced Breed®
Carlyle
ZQUARED
flavor
Fish & Poultry
Natural Poultry and Fish Flavor
Chicken
Natural Chicken, Catnip, & Carob
Unflavored
Maple
form
Powder
Oral Powder
Powder
Cold pressed soft chews, treats
Powder
Gel
active ingredients
amino acid
L-Lysine hydrochloride..........900mg & N,N-Dimethylglycine HCl (DMG).......... 50 mg
amino acid
L-Lysine HCl, Krill Oil, Yucca Schidigera Extract, Folic Acid, Vitamin B12
citric acid,potassium sorbate,sodium benzoate
size
100 Grams
225 Grams ( 900mg / Scoop)
60 count
5 oz
weight
0.01 ounces
8 ounces
2.5 ounces
3.52 ounces
14.52 ounces
0.35 pounds

From the brand


Product Description

Viralys Powder Header

Viralys is a highly-palatable powder formulated to support a healthy immune system in cats and kittens. Recommended for conditions responsive to Lysine, it supports the respiratory system and helps maintain normal eye function and health.

Viralys gel helps manage the following:

  • Sneezing
  • Runny nose
  • Sinus congestion
  • Squinting
  • Watery eyes
  • Inflamed eyes
  • Conjunctivitis (eye discharge)

Our L-Lysine powder is fish- and poultry-flavored, making it irresistible to cats and easy to administer. Following package instructions, simply give cats over six months of age one rounded scoop twice daily and kittens under six months of age 1/2 scoop twice daily. Pet parents may safely use the product as long as needed when used according to directions.

About Vetoquinol

Vetoquinol was the early pioneer of using Lysine as a food supplement to support the immune, eye and respiratory health of cats and kittens. As a result, Viralys has been the trusted brand of Lysine for felines for more than a decade. We’re a proud member of the National Animal Supplement Council (NASC), one of only a hundred animal supplement companies (out of thousands) to be so.

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Whether your cat is fussy and won't eat chews or take tablets, or she'll happily eat anything, our powdered Viralys L-Lysine daily supplement for cats is the ideal supplement. We’ve specially formulated Viralys for cats and kittens, and pet parents can easily sprinkle the powder over dried food or mix it with canned food. We've added a fishy poultry flavor that your kitty will find irresistible, whatever his age or size.

Our L-Lysine powder can be safely used with no known side effects for as long as your cat or kitten needs support when used according to directions. We manufacture Viralys right here in North America under strict pharmaceutical guidelines. We're also a proud member of the National Animal Supplement Council (NASC). Regularly audited by third-party groups, we stick to the highest standards of quality to ensure your pet receives the safest supplements possible.

Viralys contains L-Lysine, which has been shown to help manage the symptoms of upper respiratory infections including sneezing, squinting, watery or inflamed eyes, conjunctivitis, a runny nose and/or nasal congestion. All of these conditions are typically responsive to L-Lysine, and we recommend using Viralys to manage your cat's symptoms until they clear up.

Great Tips for Great Results

What if my cat doesn't like taking a powdered supplement?

Because we understand that all cats are different, we’ve developed five different Lysine food supplement products. Each one has been designed with different feline preferences in mind, to make administering Lysine supplements as easy as possible. They all allow you to give the correct Lysine dosage to your furry friend in seconds and can all be safely used for as long as your cat needs them, with no known side effects. They’re also all suitable for cats and kittens of all ages. So whatever the preferences of your cat, there’s a Vetoquinol Lysine supplement that will suit her tastes perfectly!

What is the recommended dose?

The recommended L-Lysine dosage is 500mg twice a day for cats six months and older and 250mg twice a day for kittens under six months. Following package instructions, simply give cats over six months of age one rounded scoop twice daily and kittens under six months of age ½ rounded scoop twice daily. Always follow your veterinarian’s guidelines.

What size tub does Viralys come in?

Our Viralys Lysine powder is available in a 600g tub or a handy 100g tub, ideal if you need to travel with your cat. A single scoop of our Lysine powder provides one 500mg dose. Each 100g tub has approximately 50 doses for cats and 100 doses for kittens. Refer to package directions for dosage guidelines.

I've lost my Viralys scoop, what can I do?

Each tub of Viralys comes with a new scoop. In the meantime, you can use a teaspoon; one rounded teaspoon equals approximately 500mg.

Can I use Viralys on my dog?

Viralys is only suitable for cats and kittens.

Viralys L-Lysine Supplement Powder, 100g Viralys L-Lysine Supplement Powder, 600g Viralys L-Lysine Supplement Gel, 5oz Enisyl-F L-Lysine Supplement Paste, 100mL Enisyl-F L-Lysine Supplement Bites, 6.4oz
Viralys Powder, 100g Viralys Powder, 600g Viralys Gel, 5oz Enisyl-F Paste, 100mL Enisyl-F Bites, 6.4oz
Customer Reviews
4.7 out of 5 stars
8,528
4.7 out of 5 stars
8,528
4.5 out of 5 stars
9,885
4.4 out of 5 stars
1,256
4.1 out of 5 stars
3,184
Form Powder Powder Gel Paste Chew
Size 3.5oz/100g 21.2oz/600g 5oz/142g 100mL 6.4oz/180g
Amount of Lysine 500mg/scoop 500mg/scoop 500mg per 1/2 tsp 500mg per 2 pumps 500mg per 12 bites
Flavor Fish & poultry Fish & poultry Maple Tuna Chicken liver
Ideal for Independent cats Independent cats Finicky cats Finicky cats Cats who like treats
Add to Meals Meals Nose/paws Nose/paws Give as bites

Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Product Dimensions ‏ : ‎ 4 x 5 x 5 inches; 0.01 ounces
  • Item model number ‏ : ‎ 410633
  • Department ‏ : ‎ cat-vitamins-supplements
  • Date First Available ‏ : ‎ May 25, 2006
  • Manufacturer ‏ : ‎ Vetoquinol
  • ASIN ‏ : ‎ B000FULBT4
  • Customer Reviews:
    4.7 4.7 out of 5 stars 8,528 ratings

Looking for specific info?

Important information

Safety Information

Consult your veterinarian before giving your cat Viralys. Follow the recommended administration on the package, unless otherwise instructed by your veterinarian. Keep out of reach of children and pets.

Ingredients

Active ingredients: L-Lysine hydrochloride, 500mg. Inactive ingredients: Brewer’s Dried Yeast, Hydrolyzed Fish (enzymatic), Hydrolyzed Poultry Liver (enzymatic), Mixed Tocopherols (a preservative), Sodium Acid Pyrophosphate, Sodium Sulfate.

Directions

One rounded scoop of Viralys powder contains approximately 500 mg of L-Lysine in a palatable base. The suggested amount for cats over 6 months of age is 1 rounded scoop given orally twice daily. The suggested amount for kittens under 6 months of age is 1/2 scoop given orally twice daily. Adjust amount based on veterinary recommendations.

Customer reviews

4.7 out of 5 stars
4.7 out of 5
8,528 global ratings

Customers say

Customers like the quality, health benefits, and value of the pet supplies. They mention that it works well, helps boost their immune systems, and improves their quality of life. They also say that it helps with sneezing and mucus. Customers say it's very affordable and worth every penny. They appreciate the taste, saying that the cats love the taste.

AI-generated from the text of customer reviews

444 customers mention415 positive29 negative

Customers are satisfied with the quality of the pet supplies. They mention that it works well, is effective, and is a great product. Some say that the treats and liquid work well, and are thrilled with the results. Overall, most are happy with their purchase and recommend it to others.

"...It works GREAT & cost MUCH less. Plus I like that it's "human" grade. I now can skip months at a time with no LYSINE & they still get no flare ups...." Read more

"works good for my cat" Read more

"I give this to my kitties daily as a supplement. Vet recommended. It works well for all 3 of my kitties...." Read more

"It works very well and my cat loves it." Read more

419 customers mention419 positive0 negative

Customers are satisfied with the health benefits of the pet supplies. They mention that it helps overall health, boosts the immune system, and improves quality of life. Some say that the product is a little expensive, but it's helped their cats feel better.

"...I recommend this powder if starting out, it's flavored and cats will take it well...." Read more

"...items but I would trust them over anybody and this item is so good for the animals!" Read more

"...Does it work to keep viruses in check? Maybe? Our sneezy cat is still a sneezy cat...." Read more

"My cats like it a lot, it has helped their general health." Read more

231 customers mention213 positive18 negative

Customers are satisfied with the pet supplies' effect on their pets' health. They mention that it helps with sneezing, mucus, and watery eyes. Some say that the product not only clears up their swollen noses, but it also helps with respiratory issues.

"...the cats were totally better, no crusty gooey eyes, no crusty nose, sneezing, ALL GONE!! I was amazed!!..." Read more

"Keeps my cat from sneezing - wonderful" Read more

"...And it really alleviates her itchy, runny eyes a lot!..." Read more

"...His eye is wide and bright and the sneezes and mucus have almost completely stopped!!..." Read more

209 customers mention172 positive37 negative

Customers like the value of the pet supplies. They say it's very affordable, worth every penny, and economical than gel.

"...It works GREAT & cost MUCH less. Plus I like that it's "human" grade. I now can skip months at a time with no LYSINE & they still get no flare ups...." Read more

"...And it's A LOT more economical than the gel! I'll definitely be buying some more for her...." Read more

"...This is a great product for the price considering how helpful it is boosting the immune system for cats with this virus." Read more

"...I’ll keep buying it, def worth the money!" Read more

149 customers mention136 positive13 negative

Customers say the powder is highly palatable to cats. They say it has a strong odor, but their pets don't mind it.

"...Lol. So, the cat powdered LYSINE works good, it's flavored mixes well in food & good to start on...." Read more

"...Smells gross to me but they eat it fine! On dry or wet food, even treats so it’s not hard.lol" Read more

"...It must taste OK and as long as she is happy, I am happy with the product." Read more

"...BEST WAY TO USE: The powder is flavored and comes with a tiny scoop...." Read more

104 customers mention104 positive0 negative

Customers find the pet supplies very easy to use and dose. They say the instructions are easy to follow. They also mention that the powder is highly palatable to cats and is a hassle-free product that is beneficial to their health. Customers also say the gel pump is convenient and far cheaper than using a bottle. They mention that it mixes well in food and is good to start on. Customers appreciate the great ingredients and the good information on the package.

"...powdered LYSINE works good, it's flavored mixes well in food & good to start on...." Read more

"...But the lysine really does seem to help. It hasn't completely fixed the issue, but it's the best thing I've tried so far...." Read more

"...It comes with an easy measuring scoop in each jar so dosing is super easy My cats love the taste. It's really helped his eye...." Read more

"So much easier to use than the same product in a tube. Our kitten loves it on his food." Read more

90 customers mention71 positive19 negative

Customers like the effect of the pet supplies on cats. They say it's good for cats with herpes or any upper respiratory issues, and helps keep their herpees under control. They also say it keeps the problems from turning infectious and provides immune support. The supplement mixes easily with canned food and helps with sneezing. It also helps prevent URI and herpe outbreaks, and keeps other cats from catching it.

"...The cat hasn't had a flair up for last 3 months, which really makes me happy...." Read more

"...likes the taste on his dry food and the daily use keeps the reactions from turning to infection." Read more

"...It keeps my cats problem at bay. Occassionally the issue comes back again, but within a matter of hours or 1/2 day my cat's eye looks fine again...." Read more

"...Immediately, my cat started vomiting regularly. He has never been a cat that throws up...." Read more

138 customers mention57 positive81 negative

Customers have mixed opinions about the scent of the pet supplies. Some mention that it smells just like chicken, while others say that it has a fishy smell.

"...Smells gross to me but they eat it fine! On dry or wet food, even treats so it’s not hard.lol" Read more

"...The powder smells like fish, which is probably why Lenny gobbles it up...." Read more

"...Two of my cats won’t touch it. Strong smell. The cat I’d actually bought it for world eat it, so I just stopped giving it to the others...." Read more

"It smells just like chicken, i mix it with canned food and the cats love it! it is a little expensive but it’s helped out cats feel so much better...." Read more

Here’s a reminder
5 Stars
Here’s a reminder
With any supplements, you have to cycle the administering of it. On for 2-3 weeks, off for 1-2 weeks. I’ve found great success with doing so for my cats Asé and Lunuh.From the pictures, you can see these two are thick as thieves. They love cuddling and playing together the most. I have a third cat, Midnight, but she’s 8 years old and stays away from their young energy. Lol!Because Asé is FIV+, he’s prone to colds (sniffles) very often and Lunuh is as well because she wants to be near him all the time. This product has definitely kept the colds/sniffles at bay. I mix it in with their evening wet food meal.What I do, so they don’t detect it, is warm the food with just a bit of warm water (extra hydration) and spoon the serving amount into the food and mush it all in. Then I just let it sit for about 2 mins (to dissolve good) and vigorously stir it in. They eat it all up. No problems.It’s a great supplement. Go for it!
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5.0 out of 5 stars Easier and More Economical Than the Gel
Reviewed in the United States on July 10, 2018
My Lilith has feline herpes and gets runny, irritated eyes because of it. She's had a lot of eye issues because of this virus. She had several sequestra due to it and we finally had to get her a corneal transplant as the sequestra had eroded her cornea so much. Yeah, we love her! :D
Her eyes are constantly irritated. Antibiotics and creams fix it for a bit, but it comes back within 2 weeks of stopping them. Can't keep her on antibiotics all the time. It's just this pesky virus!
I used to use the Viralys gel. And although she accepted it, she got tired of it after a while and it was frustrating trying to chase her down twice a day to give it to her. But the lysine really does seem to help. It hasn't completely fixed the issue, but it's the best thing I've tried so far. And it really alleviates her itchy, runny eyes a lot!
Trouble was, she will only eat dried food, so it would've been impossible to mix the gel in with it. So what I do is to mist the dry food with a water bottle (just a gentle misting will do) and I sprinkle this on it. Then I mix it around in her bowl to get it to stick evenly to the dry food. I feed her once a day with enough dry food for the day (she's a nibbler and eats a little at a time throughout the day). I coat the food with 2 scoops of this. In the beginning I ground it up with a mortal and pestle because I was afraid she would lick it off. But I'm going to stop that now as I think she's gotten used to it. We have 2 other cats who will only eat wet food. So she does have access to other foods, but she still prefers her dry food with this sprinkled on it.
It's worked out great! She accepts it and I no longer have to chase her around and coax her to take her medicine. And it's A LOT more economical than the gel! I'll definitely be buying some more for her.
If your cat will accept it, the powder is the way to go!
:)
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Cliente de Amazon
5.0 out of 5 stars IDEAL PARA GATOS
Reviewed in Mexico on September 14, 2023
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Anndie
5.0 out of 5 stars Purrrfect!!!!!
Reviewed in Canada on July 31, 2023
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Jolyn Ann Wong
5.0 out of 5 stars My cats like it!
Reviewed in Singapore on March 31, 2022
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Amazon Customer
5.0 out of 5 stars Good for my cats
Reviewed in Canada on May 25, 2023
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Stewart
5.0 out of 5 stars Bang for your buck
Reviewed in Canada on February 23, 2022
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