| − | While acetaminophen is judged safe and effective for human use suggested doses, as mentioned above, overdoses can cause severe liver damage. The poisoning must be treated within 8 hours for the antidote to prove useful. Cases left unattended for longer than 8 hours may require a liver transplant. Also, acetaminophen is very toxic to cats, and should never be given to them, as even small amounts can prove deadly. | + | While acetaminophen is judged safe and effective for human use at suggested doses, as mentioned above, overdoses can cause severe liver damage. The poisoning must be treated within 8 hours for the antidote to prove useful. Cases left unattended for longer than 8 hours may require a liver transplant. Also, acetaminophen is very toxic to cats, and should never be given to them, as even small amounts can prove deadly. |