About 4 years ago, my mom and I picked up some flea killer since our regular, trifexis was out. My dog, Max and our then family dog Harry were fine, healthy, and Max was fairly young dog. That night when we put it them, Harry just slept like usual but Max started acting odd. It was like he couldn’t walk and he started staring at odd things. My mom looked online and out it was killing dogs. So, we bathed Max four times with dawn and the fourth time did the trick. He came out frisky, wet, and super mad but, happy that he wasn’t sick anymore. I don’t know how Harry did because he lived another two years and I’m assuming that sergeant doesn’t cause cancer.