Cat poisoned by Sergeants flea treatment

Apparently, this cheap cat flea product is unsafe as there appears to be far too many complaints about it and instances of cats being poisoned by. It is a cheap product and that may be one reason why it tends to poison cats. It is not a drop on treatment but a spray it appears to me. This means it goes all over the coat and into the skin. I would never use such a product by the way. I would never use any cat flea product unless I really have to. Comb with a flea comb first and keep an eye on fleas. Kill them by hand if possible. Keep your house clean. Always take preventative action against fleas getting into the home. I think flea treatments which are based upon insecticides are inherently very dangerous and can cause neurological damage. All insecticides are poisons and they are nasty poisons.