After years of using Frontline without incident, I bought Hartz Flea and Tick drops to apply to my three year old pug while we were out of town on vacation. Within 48 hours we had called the vet because of her intense itching and redness, for which Benadryl did nothing. Her skin was actually a color closer to purple. 24 hours later, the vet treated her with steroids, but 48 hours after that treatment, she wasn’t doing any better. In fact, she was steadily getting worse. At this point, she was starting to swell and was extremely lethargic. Then, 24 hours later, she stopped eating and would not get up. I rushed her to the vet, where they ran several tests. They determined that she was spilling protein and that she had severe vasculitis as a result of an allergic reaction, which was causing her veins to swell and leak liquid and protein. They recommended I admit her to an emergency animal hospital, which I did. She had swollen to more than twice her normal size. She was in intensive care, receiving copious amounts of medication for four and a half days before she died of cardiac arrest. Putting aside the intense guilt and heartache her passing caused me and my family, I spent more than $4000 in vet bills in a 10-day period.
I wrote to Hartz and informed them of the incident. They asked me to send her files and vet bills, which I did. They then wrote me saying that their product did not cause my dog’s death and that insufficient diagnostic testing was performed to confirm the diagnosis. I have posted reviews on every website I can find warning people not to buy Hartz products — I only wish there were more that I could do.