Hartz Ultra Guard Pro flea drops for cats

I put the flea drops of Hartz Ultra Guard drops on my cats’s neck in an effort to save money from the stuff I have been buying from the vet- “Advantage”. The ad in the paper that caught my eye sort of said to wise up and stop paying high prices. Well, I noticed he was licking his back neck area and then was not his peppy self. So I went online and saw your comments and got alarmed and washed it off with shampoo right away. I am throwing the rest of it out- here’s the thing I think; Advantage and the other high price stuff from the vets is not so much liquid on the neck. It was a lot of liquid in the Hartz tube and so my cat could reach to where it had soaked. It says to use all the liquid drops. I will pay the high price from now on- it’s worth it.

9 thoughts on “Hartz Ultra Guard Pro flea drops for cats”

  1. I just got back home from an emergency visit with my cat’s veterinary office. Just last week, I was evacuated for a hurricane (Gustav), and my cats picked up fleas at the house we were staying during the storm. While there, I went to the local Kroger and picked up some Hartz UltraGuard Pro for cats, intending to rid them of the pest problem once and for all. I’m not made of money, so I thought I’d give the OTC drops a try. Hartz is a reputable name, so I pretty much assumed any product they would sell for use on my pets would be safe. Boy, was I wrong.

    My husband and I spent a good part of the day cleaning up around our apartment, part of which entailed addressing our newfound flea problem. So, I popped open one of the Hartz boxes and applied the product to all four of my cats. No more than five minutes later, I heard a weird noise. I looked over to find my cat, Lucy, salivating profusely from her mouth. Being that I have worked in the medical field, I knew right away that this was a sign of nerve agent poisoning. Little did I know, it was a main ingredient in the flea drops! I rushed her to the after hours animal clinic, where she was successfully treated a while later. My cat was returned to me shaved, scared and wet. The veterinarian examined the empty Hartz box and told me that this was not the first time this product had brought animals into her emergency clinic for care. She advised me that, although the product was sold in many stores by a well known and reputable company, its contents were highly toxic to both cats and humans!!! I was told that Revolution would not have produced such toxic effects.

    A hundred dollars later, I brought my baby home, with advice to watch her closely for 48 hours for any more salivation or possibly signs of seizure. I am absolutely outraged!

    Dangerous products such as these should not be sold in our pet stores, or local supermarkets. They should be removed from the shelves… If I had not paid close attention, this Hartz product could have killed my cat! If you are reading this message, please, please, PLEASE DON’T USE THIS STUFF ON YOUR BELOVED PET!!! I will post the active ingredients and UPC number below, so you can avoid them.

    You can certainly bet Hartz will be receiving a nasty-gram really soon with my return address on it… and a copy of the bill. Good luck to all of you. I hope you get the message in time.

    Heather DeCausemaker Weisel

    Product Name: Hartz UltraGuard Pro for use on cats 5 lbs and over
    Active Ingredients: (S)-Methoprene (CAS #65733-16-6) 3.6% and
    Etofenprox (CAS #80844-07-1) 40.0%
    UPC #: 32700 10843

  2. Hartz
    S-Methoprene 3.6
    Etofenprox 40% made from a type of Daisy Flower

    Fontline Plus
    S-Methoprene 11.8%
    Fipronil more toxic than Etofenprox to People

    If them with over priced stuff will rob Someone of Their last dollar then they will also lie about the lower priced stuff and Hartz has never killed any of My Cats.

    Why Not condemn Frontline and Advantage for being over priced Instead of saying pay the higher price?

  3. Just used Hartz Ultra Guard Pro on two of my cats. The stuff almost KILLED them!!!! They started foaming at the mouth and freaking out. I am so mad right now I can hardly stand it! I thought maybe its because the house cat is more sensitive than the outside cat, well, obviously that’s not true.

    I can’t believe the love of money means so much to some people that they would produce a product like this that is poisonous to cats.


    Pam Strauser

  4. I bought Hartz Ultra Gaurd Plus for cats 5+ lbs last night. I thought that Hartz seemed like a trustworthy brand name and it was affordable, so I went with it. I had seen a flea or two on my cats (I have three of them.)
    Luckily, I had only managed to put it on one of them and not all three, because he was definately allergic to it!! First, I noticed that he was drolling a lot and foaming at the mouth. And it had been nearly four hours since the application and it still hadn’t dried on his neck. Then I noticed he was scratching the area on his neck a lot that it had been applied. He also wasn’t being his normal self — happy, purring, friendly. Instead he was twitching and seemed really anxious.
    So I got online and several websites all confirmed the same things about this product…DO NOT USE IT!
    I washed my cat thoroughly but was still very worried that he wasn’t going to be ok. By this time, it was nearly 2:00 in the morning and it would be a real task to have found a vet open at that time. I am new to this area so I don’t know where to look for that sort of thing. Luckily, tho, he had calmed down enough after the bath that I trusted he would be fine. And he is this morning.
    Regardless, tho, I am so angry that a product that obviously does more harm than good is on the shelves for anyone to unknowingly administer to their pets. If people care enough about their animals to get them flea medication, then they obviously care enough not to poison them!!!! I plan on sending a formal complaint asap to Hartz for such cruelty. Not to mention, the hazardous chemicals present in this product are also hazardous to humans!

  5. I purchased Hartz Ultra Guard Pro Flea Drops for Cats. I have a two year old indoor-outdoor cat who won’t let anyone touch her. So, I tried twice to dose her while she fed. I only managed about one-half tube, before she bolted. Since it has a perfume ingredient, the cat licked it off using its paws. I will check on her outside tonite, but there is nothing I can do if she can not be found. I feel pretty stupid falling for the slick packaging, knowing or suspecting nothing about Hartz. I hope this cat is lucky, because it’s very intelligent and personable. The fleas have given it spots of mange, though, and it never stops scratching. I just thought I could not afford years of Advantage.

  6. I was using Revolution on my cat for 6 months but decided to switch to Hartz to try and save some money in our budget. I gave it to my cat last Sunday on the spot you’re supposed to behind his neck, used the whole tube on him, and he seemed to be OK. My husband and I kept him from scratching at his back or licking at the solution, but by late Sunday night it seemed like the solution had spread from his neck all down his right side towards his front paw. It was damp and smelled like the flea treatment. On Monday afternoon when my husband got home from work, we gave him a bath using Aveeno oatmeal body wash (he didn’t cry during it, and once he got wet and was soaped up, didn’t try to escape, which was totally weird) to try and get as much of the treatment off of him. It was after that that we noticed that he wasn’t eating much of his food. We got some wet food that has some nutrients in it to keep him healthy and satisfied, and slowly his appetite has come back to normal. It was really scary for a point in time there with him barely eating though, and I don’t think we’ll be using the rest of the box of Hartz treatments that we bought and will be switching back to Revolution, even though it was hella expensive. Can’t put a price on love and treatment for a member of the family though 🙂

  7. Really F#%**^^ aggravated…. Just bought the treatment tonight and my cat started foaming from her mouth…. Rushed her down and rinsed out her mouth and washed her immediately. Probably taking her to the vet tomorrow. Hartz you are now on my S#%^ list!

  8. My cat is acting completely uneasy, on edge. She is typically a loveable, friendly cat. She loves to be loved. She is now running away.
    Last night she twitched, and jumped around and didn’t sleep at all.
    She seems a little better today, but she is still not herself.
    I gave her this treatment last year in September. She was fine, a little annoyed, but fine…
    Reading all these horror stories does not make me feel good about this product…I really I didnt kill my cat!!

  9. I used the flea treatment on my cat for the first time ever and I had left the room for a quick moment , obviously my mistake cause I think she licked some of the medicine up…. I came inside the room and she had some dripping out of her nose , now she is acting very weird and breathing very odd and her breathing has a congested sound to it , she’s very depressed and won’t eat her food , I don’t know what to do

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