We used the Sergeants Gold Flea & Tick Squeeze-On and almost lost both of our dogs. They immediately started digging and scratching, rolling on their backs trying to stop the burning. That progressed to yelping, panting, drooling, foaming at the mouth, eyes swelling shut, crying and seizure like twitching all night. We bathed them over and over with a mild soap and administered Benadryl repeatedly. After a long night and day, they recovered, thankfully, but at one point we truly thought the Pug would die in our arms. I have written letters to the local and corporate offices of Wal-Mart and Kroger, asking that they review their inventory and consider pulling some of these dangerous items from their shelves. Please spread the word, as most people probably don’t hear this until WAY too late, just as we did. I have heard the product names Hartz and Sergeants for many years and assumed these were trusted, well known brands if they have lasted that long. That was a horrible assumption and not something I will do to my pets again.