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.

We lost our baby girl

Today, April 20, 2016 was a much harder day then my family could have ever anticipated. What started out as a normal week, unexpected turned dark when we lost a huge part of what makes our family laugh daily. On Monday, Mom picked up two hartz flea collars, one for each of our dogs, to take them for a walk. I got home from work and noticed the scent they omitted was particularly strong in comparison to collars we’ve previously purchased. My dogs were wrestless all night and in the morning wouldn’t eat. I found this behaviour very strange and immediately took my older dog to the vet as she was so weak she could barely move. The vet said she looked nastargic but her tempurature and heart rate were normal. After some research we immediately removed the collars. Our vet mentioned that no matter what size the collar, the medication was the same across the sizes. She sent off some blood work, but thought it would pass as her signs weren’t severe. I took my sick dog home where she continued to throw up water, although she was trying, which was an improvement. At 3 am, awful howls came from our dog. Her stomach spazaming, legs rigid, unable to move. Shortly later, she passed away. Our dog was very small and a little older, but before yesterday she showed no signs of anything wrong. She was happy, spunky and playful. I feel like my dog was taken from me without notice. She never overly showed signs of aging, or getting old and her check-ups were regular and healthy. Luckily, our other dog is quite a bit younger and stopped acting strange once the collar was removed. Our older dog though, our family and the vet fear, was unable to break down the chemicals on hartz collars due to her age and size, ultimately poisoning her and resulting in her death. Please, I hope all of you encourage your family and friends to do your research before using any new shampoos, foods, flea collars, ANYTHING, on your dogs. It could save their life. For my family, our loss was unexpected and sudden. This hard to digest fact will now linger through our family everyday as we look down for our baby girls excited and wagging tail every time we walk through the door and it won’t be there. #hartzkills

Scared for my pet

A little over a month ago my roommate and I found fleas on our cat, Tiny. My roommate’s family sent us a little flea care-package with flea bombs and Hartz FCs. About two weeks ago we put on the collar, bombed the house, washed all the clothes and bedding, and vacuumed. At first the collar didn’t seem to be presenting any issues, other than not working at all, until three days ago when I noticed the cat started acting weird. He was hiding in my kitchen cabinets and acting really timid, which was completely out of character because usually he’s a nut case and super friendly, and he stopped eating. For the past two days the cat has been sitting in the corner of my kitchen and hasn’t moved (yes we checked that he was still alive) and we had no idea what was going on with him. So I started doing research because someone had told me that depending on the flea medication it can have bad effects on your cat, but I wasn’t aware of what we had because I hadn’t purchased the medication myself and was excited to get this flea problem under control. I’m glad I stumbled upon this website and learned of how dangerous this product was, now I’m going to try and get Tiny to the vet to make sure he’s not seriously ill. Please stay away from this product, use vet recommended medication for the safety of your animal.

Chemical burns from Hartz flea collar

I recently bought a Hartz flea collar for my cat and while wearing the collar she seemed very restless and agitated. We attributed her odd behavior to her age (she’s 15 years old). After about a week of wearing the collar, we took it off in order to give her a bath. Upon removing the collar we were surprised to find the fur beneath is was gone and the skin was red, bloody, and irritated. After researching Hartz, I found that chemical burns from their flea collars are not uncommon. I’m glad we noticed before the burns got any worse! I will NOT be buying Hartz products again and I will ensure others know the dangers of their flea products.

Hartz flea drops suck and my cats hair fell out!!

I normally give my cats Frontline, but I happened to come across Hartz flea drops in the store and it was a convenient buy. I administered the medicine onto both my cats, as I normally do, and didn’t think twice about it… Until I started finding patches of hair throughout my room. I panicked, searched for my cats and noticed that one of them had a bald spot right above his shoulder. I Googled “Hattz flea hair loss” and stumbled upon millions of negative reviews. I wish I knew all of this earlier, because bald spot, scab, and itches later: here’s my cat. I’m hoping neosporin or some sort of cat-wound-cream and a bandage will help him.


I have 3 dogs and 2 cats and am on disability, we are already having a bad flea problern this year and I cannot afford frontling. When I was at Dollar General shopping and saw the seargent for dogs for 5.oo, the worst I thought would happen is that it wouldnt work. When I woke up the nesxt morning my dog had sores and no hair in many area’s and my cat was the same way. I didn’t buy any for the cats but they sleep with the dogs. I cant afford to take them to the vet but got online and saw how many people have had the same problem and what really makes me mad is there is no warning, well that and they are still selling them, one of may cats is having spasms in his stomach so I don’t even know if he is going to survive. please help. Thanks: Jeffrey Scott Caldwell. p.s. my phone number is 205-202-3339, this is not a cell phone it is a home phone, Again thanks….