I hope this is allowed. My friend used Bob Martin flea treatment on her cat who then lost it's fur where the treatment was applied. Her other cat licked it and was really ill for 24 hours.
Because the cat who licked it off recovered, my friend thought nothing of it and applied it again to her other cat four weeks later. Her second cat again licked it off and was dead 24hrs later from kidney failure.
This was a strong, healthy cat with no prior kidney problems. She has since been on Facebook and discovered it has killed a very high number of cats and kittens. She is trying to get it banned.
Please, please don't use this. Some cats are ok with it but it's hot and miss.