After cats are poisoned, they will be unable to stand, have difficulty breathing, have blurry eyes, have hearing loss, and lose consciousness. The cats will not be able to feel the calls of their owners and family members. Afterwards, the internal organs of the body will begin to fail and they will die within a short period of time. The process from poisoning to death is very painful for cats. The cat will feel changes in its body organs and severe pain before dying.