What is the prognosis of methanol toxicity?

Updated: Nov 05, 2018
  • Author: Kalyani Korabathina, MD; Chief Editor: Tarakad S Ramachandran, MBBS, MBA, MPH, FAAN, FACP, FAHA, FRCP, FRCPC, FRS, LRCP, MRCP, MRCS  more...
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The prognosis in methanol poisoning correlates with the amount of methanol consumed and the subsequent degree of metabolic acidosis; more severe acidosis confers a poorer prognosis. The prognosis is further dependent on the amount of formic acid that has accumulated in the blood, with a direct correlation existing between the formic acid concentration and morbidity and mortality. Little long-term improvement can be expected in patients with neurologic complications. (See Treatment and Medication.) [8]

The minimal lethal dose of methanol in adults is believed to be 0.3-1 g/kg of body weight. [9] The exact rates of morbidity and mortality from methanol intoxication are not available.

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