My baby is a 11 month old LabChow mix, I never had any problem with fleas and ticks so did not use any products. Then one day while shopping at the grocery store I saw Hartz UltraGuard Flea & Tick and decided to get it as I am going camping and thought it would be wise.
Over the next 3 weeks my pup started losing hair, he developed bald patches on his legs and underbelly. Then small tiny scabs started appearing on his head and as they fell off they left horrid bald spots. He started acting strange as well, hiding from the family, being restless at night, a lack of energy and appetite. The last straw was when I saw that his tail was bright red under the hair from where he had been gnawing the scabs. I still did not make the connection to Hartz until I went to my Vet today. He told me that the scabs were an allergic reaction to Hartz and the poor pub had chewed his tail raw. He prescribed some antibiotics and gave him a shot for relief. Only hope that will help him get better. I will tell everyone I EVER meet who has a dog about Hartz. SHAME on you, there is a special place in the afterlife for people who peddle death.