i used hartz ultra guard on my 14 year old cat, foxglove topaz decker. i’ve used it before and noticed her acting a little lethargic. this time fleas were really bad so i used more than previously. i sprayed her on tuesday night. i called her in the next morning . she didn’t come. not even when i banged the cat tin lid. i went out and called her. she answered so i went and carried her in. she ignored her wet food . that’s when i knew something was wrong. i sat with her and brushed her, knowing she loved that. i checked on her a little later. she was drooling. i took her straight to the shower to wash her off . her head was kind of lolling while i washed her. suddenly she started meowing and her arms and legs stretched out stiffly. i petted and talked to her while drying her off. she relaxed and her heart was in tachycardia. then it stopped. she curled up, stiff as a board. my heart wanted to stop. she was born on my bed and died in my arms. i wish i had known of this site earlier. my other cat, motoko, gets pissed when i use it on her. i never will again. i hate the mother effers at hartz. make the public aware. please and thanks.