My Weenies Almost Died

My 2 miniature dachshunds love the Hartz Oinkies Rolled Pig Skin Twists. However the bag that I recently purchased, from Safeway in Redwood City, CA must have had something toxic in them. Several hours after ingesting them they became violently ill. Shaking, vomiting, diarrhea, drooling, dilated pupils, lethargic…..this went on for almost 24 hours. After finding this web site I just knew it had to be the pig twists. I’m truly outraged that Hartz is still in business. After hours of research, it became evident to me, that even pet treats made in the USA are suspect to contamination and not safe for our furry friends. Many companies purchase the ingredients used in their treats from China and slap a “Made in the USA” on them. My heart goes out to everyone who has had a similar experience, especially those that lost loved their loved ones due to these uncaring, negligent companies who continue to put our pets at risk.

Your Voice Will Be Heard

Hello, I’m a journalist for, and I’ve recently become aware of the issues Hartz UltraGuard flea and tick preventatives have been causing. Know you are not alone, and I will work to make sure your voices are heard. My sympathies go out to those of you who have been victims of Hartz products.

You can read my article here:

Which active ingredients?

It’s obvious there is a problem, but without knowing which ingredients are in the product you had a bad experience with, your story does not help focus on the problems. Companies have changed ingredients at times (See NRDC story). So please list the ingredients along with the symptoms.


This website is a life saver! I bought Hartz Underguard Flea Collar and I put it on my 11 month old Maltipoo. Right after, I decided to search up some reviews on this product. I came across this website and several others that claimed that Hartz was not a good product to use. I’m not willing to take the risk of using this product and have removed it immediately!! I REFUSE TO BUY THIS PRODUCT EVER AGAIN

Cats terrible chemical burn

Last fall I bought the Hartz flea drops for cats I put it on all 5 of our cats The 4 tolerated it ok but our siamese had to go to the vet as the product caused a severe chemical burn and the vet told us He has seen this many times before and to bath her to get the lingering oils off,We did this but now here it is almost summer and she still has this patch of hair missing and is still itching this one spot all the time and still acting scared of us She sure is not the same cat. as before this incident buyer be very aware of this product and the damage it can do to your pets.

Hartz, How do you people sleep at night?

My beautiful cat Tobi is so sick. I put on one application of Hartz Flea Control and she started to act sick. She was lethargic and didn’t want to eat or drink. I took her to a groomers to get the poison off of her. That was last week. She is still not eating or drinking. I took her to the Vet yesterday. The Vet technician said that she was probable poisoned from the Hartz Flea Control and that people have know that the Hartz Flea Control kills cats and puppies. I was stunned. A co-worker just told me that this morning as well. I am so heart sick. How can Hartz know they are killing animals and still keep this product on the market? How can Publix and other companies still sell this product? Something has to be done and fast! Let’s get a Class Action suit going. Hartz has got to be stopped. How are we going to do this? Please let me know.

Hartz left a big lesion

Our kitty Hope developed a serious lesion aout the size of my thumbnail within 24 hours of application of the Hartz flea drops…even though we had washed it of within an hour, noticing she was extremely agitated and uncomfortable. WE saw the same reaction on our second cat, and so we washed it off. I waited a week and tried the flea collar….only on the second cat, though, since the first kitty still had her lesion. Our second kitty, Budy, within an hour began to try to scratch UNDER the flea collar and all around it, nowhere else, so I knew it was the collar and took it off…Only then did I read the reviews of the products.

If enough people tell enough Wal-Mart stores (they refunded my money immediately) then Wal-Mart will QUIT buying this awful and dangerous product.

Meanwhile ten days later, I finally get to take both Hope and Buddy to the Vet.
vaccines are causing cats huge problems down the road

BY THE WAY, those vaccines are also doing a lot of permanent damage to our cats:

AAFP Releases New Feline Vaccination Guidelines

Hartz Ultraguard Plus Is Deadly

I purchased the Hartz Ultraguard Plus Flea and Tick Prevention. Applied it by label directions as I always have with any flea treatment. Within 24 hours my cat began to lose his hair around his neck, shoulders and head. He is not the same cat now. His personality is fearful, he runs from me and hides. He meows a sound that sounds like he is trying to use words instead of meows. The fleas are worse on him now than before the treatment. He has signs of skin damage in areas that were not treated. It is inside him and I cannot do anything about it. I feel horrible. His skin is red and irritated. I cannot touch him now to pick him up he just runs away and hides. I cannot get to him to wash it off. It has been 5 days. I am surprised he is still alive. #DoNotBuyThisProductEver


We bathed our dog in Hartz ultra guard when he had fleas, and he started having side effects within a few hours – shaking all over, laying without energy, not wanting to be picked up, biting you if you tried (not normal), etc. We called the vet, and they told us to bring him in. Good thing we did. Evidently they see this happen frequently, and gave him a shot to counteract the POISON in the shampoo. They gave us an 800 number to call if he didn’t get better, since we would have to take him an hour to Chesapeake to get a second shot (over the weekend the vet would be closed). It is unbelievable to me that this shampoo is still SOLD, despite the fact the dogs and cats have died and/or been disabled for life.(as verified by vet). But why should I be surprised…..this is the U.S.A. , right? All they do is put a warning label on it, and continue to make millions, despite what it does to health.

attorney in the house??

I Put this crap ( Sergeants) on my two small shitzu/ poodle cross dogs. Both had a reaction but one had far more severe reaction. It has been five days (three with benadryl) and he is still going crazy!!. Shaking his head, itching uncontrollably, panting, so agitated and anxious. He looks at me and begs to make it stop. I am sick about this! How in the world is it even possible that this product is still on the shelf?? People have been posting on this site for years and not one single attorney has come forward to take these cases to court? I finally called the vet today after trying the dawn and benadryl. I think it has helped but not nearly enough.