Shellac contains methanol, which can cause fatal damage to the kidneys, as well as blindness. It also causes a disturbance in blood pH which can lead to multiple system failure and death.

Expectations (prognosis)

Methanol is extremely toxic. As little as 2 TABLEspoons can be fatal to a child, while 2 to 8 oz. can be fatal for adults. The ultimate outcome for the patient depends on how much was swallowed and how soon appropriate care was given.