Something told me to do a little online research before I put the Hartz Flea & Tick Drops on her. I had also bought the Hartz Flea & Tick Spray Repellent as another option. One website, led to another, and then led me here. The stories of bad reactions and even death to so many furry family members is heartbreaking. I am grateful for this website and all the information it holds. It has prevented my Squeaker from becoming a victim. Thank You.