How can methanol be harmful to human if accidentically swallowed

http://www.nlm.nih.gov/medlineplus/ency/article/002680.htm

After humans are exposed to methanol, the dangerous symptoms result when methanol is transformed into formic acid in the body; it is the formic acid that damages the central nervous system.

http://emedicine.medscape.com/article/1174890-overview

Methanol, also known as wood alcohol, can be toxic if accidentally swallowed. Methanol is metabolized in the liver into formaldehyde and formic acid, which are highly toxic substances. Ingesting even a small amount of methanol can cause severe poisoning and potential health complications.

If someone accidentally swallows methanol, it is crucial to seek medical attention immediately. In the meantime, you can take the following steps:

1. Call emergency services or a poison control center: Inform them about the situation and follow their instructions. They are well-equipped to provide immediate guidance on how to handle the situation.

2. Do not induce vomiting: It's important to avoid inducing vomiting unless explicitly advised to do so by a medical professional. In some cases, vomiting can cause further damage to the throat and mouth tissues.

3. Dilute with water (if advised): If instructed by emergency services or poison control, you may be advised to drink water to help dilute the methanol. This should only be done under professional guidance.

4. Do not delay medical attention: Seeking immediate medical help is crucial. Methanol poisoning requires prompt treatment to prevent severe complications, such as metabolic acidosis, vision problems, or organ failure.

It's important to remember that my response does not substitute professional medical advice. If you encounter a situation like this, always consult a healthcare professional for guidance.