Lysine useful for feline herpes eye problem?

Discussion in 'Feline Health - (Welcome & Main Forum)' started by mogwaibond, Dec 23, 2020.

  1. mogwaibond

    mogwaibond New Member

    Oct 1, 2014
    Hello! I see a lot of people recommending Lysine supplements for feline herpes (in our case, manifested as bad eye problem -- which is being treated). Would love any feedback on this. Thank you.
  2. THH & Snowcrash (GA)

    THH & Snowcrash (GA) Member

    Aug 28, 2020
    There apparently are studies that show lysine doesn't do anything--

    however, in my experience at home and when I was with the rescue, it does seem to help. I use the human lysine powder because it's a lot cheaper. About 1/4 tsp twice daily.
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  3. Larry and Kitties

    Larry and Kitties Well-Known Member

    Dec 28, 2009
    I have found it works. When I adopted MurrFee he had weepy eyes. I first used eye antibiotic and it cleared it up but the weeping reappeared when I stopped. After two routs of antibiotics I tried L-Lysine and that clear up the eyes. I give L-Lysine to all my cats.
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  4. tiffmaxee

    tiffmaxee Well-Known Member

    Nov 15, 2013
    I’ve found the same as above. We never will know if it just went away or the lysine worked but I ne Er found it hurts.
  5. Panic

    Panic Well-Known Member

    Apr 10, 2019
    I did read a study showing that it was ineffective in shelter cats, though I believe overcrowding/stress exacerbates the problem so I suppose in a home setting results may be better.
    I was using Now Pets L-Lysine Powder for my kitten which didn't help but after running a PCR Resp IDEXX Panel we discovered she didn't have herpes at all (she had 3 other viruses but not herpes) so that's something to keep in mind in case an actual panel hasn't been run to confirm the virus.
    Critter Mom and tiffmaxee like this.

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