Around the 4th of July my 9 year old 60# Beago became violently sick vomiting, bloody diarrhea, lethargic wouldn’t do anything but lay around the house. We really thought he was going to die. At first we just thought it was due to the fireworks every night and his old age but his diarrhea lasted for 10 days. Thinking of what may have caused him to be sick my husband mentioned he just gave him his flea drops prior to him being sick. I dismissed this notion since he has taken them for years. Thanks to a friend on fb who posted this website I found the real culprit. After i read the article I just screamed “Oh My God!” I could not believe a product that I trusted to keep my baby healthy almost killed him. I would rather have fleas in my house than a dead dog! Thanks Hartz!