<prompt> Ethanol is antidote for poisoning of -MethanolBarbituratesPhenolCarbolic acid  <response>: Ans. is a i.e., Methanol o Methyl alcohol methanol is highly toxic. It is metabolized to formaldehyde by alcohol dehydrogenase, which in turn is metabolized to formic acid by aldehyde dehydrogenaseo Formic acid is responsible for most of the toxic manifestations which include high anion gap metabolic acidosis with low bicarbonate lactic acidosis, blindness due to retinal damage and papilloedema.o Treatment includes supportive measures, gastric lavage and sodium bicarbnate. Ethanol inhibits conversion of methanol to formic acid and fomepizole inhibitor of alcohol dehydrognease are also used. Other measures are folic acid or folinic acid and hemodialysis. 