What You Need to Know About Methanol Poisoning (2024)

Enjoying a co*cktail or a beer on holidays is something many of us do. Particularly when visiting destinations like Thailand and Bali, which lend themselves to relaxing poolside with a drink in hand.

But it's important to be smart about where you get your alcoholic beverages from. An unfortunate reality in these countries is that alcohol production is often unregulated. In Bali, this moonshine is called 'arak'. In Thailand, it's 'ya dong'. While in India, it's referred to as 'tharra'.

This leaves an opportunity for counterfeit and illicitly produced alcohol to end up for sale. As a result, the past few years have seen methanol poisonings on the rise, with some resulting in the deaths of unsuspecting travellers.

Here’s what you need to know about avoiding methanol poisoning and understanding what it is when travelling.

Skip ahead to read:

  • What is methanol poisoning?
  • How do you get methanol poisoning?
  • What are the symptoms of methanol poisoning?
  • How to avoid methanol poisoning
  • What to do if you suspect methanol poisoning

What You Need to Know About Methanol Poisoning (1)

Look after your health when travelling. See our blog for more medical tips to help you stay safe.

Methanol is a commonly used and widely available chemical. It's a type of alcohol, just like ethanol. While ethanol is the main alcohol found in proprietary drinks, methanol is toxic and therefore not utilised. Both look the same, with methanol having a very distinctive odour.

You’ll find methanol in household products such as varnish, windscreen wash and antifreeze. It’s also used to make plastics and paint, and can even be used as a biofuel for model airplanes.

It's definitely unsuitable for human consumption. Even drinking a small amount can lead to toxicity and death as a result of methanol poisoning.

If ingested by humans, it is highly toxic and can lead to blindness, coma, and in severe cases, death.

As always, you should consider consulting with a medical professional if you suspect methanol poisoning or feel unwell while on holidays. You can reach out to ourEmergency Assistanceteam if you need help finding a nearby medical centre.

Most cases of methanol poisoning are a result of drinkinghome-brewed alcohol. Methanol is either deliberately added to strengthen informally produced alcohol, or it is left in the brew because of poor distillation practices.

Adding methanol to drinks is a cost-saving practice that allows sellers to peddle strong alcoholic drinks for a much lower price. Imported commercial spirits can be expensive for local businesses, so homemade alcohol allows them to sell drinks for a fraction of the price.

Often advertised as 'gin' or 'vodka', methanol-based drinks can be sold with sugary mixers and juices to hide the taste. Luring in foreign holidaymakers, these dangerous drinks are often served in colourful buckets or in co*cktails.

Methanol can also be found in counterfeit bottles of spirits. What might look like a brand name spirit might actually be a rip-off bottle that contains the toxic chemical. Like a fake handbag, these counterfeit bottles can look exactly like the real deal.

What You Need to Know About Methanol Poisoning (2)

Methanol poisoning isn't the only thing you need to watch out for in places like Indonesia and Thailand. Find out how to avoid the dreaded Bali belly.

As menthol is often consumed alongside alcohol, initial symptoms are often confused with feeling tipsy or being drunk. In addition, any ethanol co-ingested may initially be protective against methanol toxicity. This could be drowsiness, feeling unsteady, or feeling disinhibited. After a period of time, an individual suffering from methanol poisoning may experience:

  • Fading in and out of consciousness
  • Progressive visual disturbance
  • Headache
  • Vomiting
  • Abdominal pain
  • Vertigo

If left untreated, breathlessness and hyperventilation might occur. This can be followed by disturbances in vision, including blindness. Long-term effects can include permanent vision problems, blindness, and kidney failure.

In severe cases, coma, convulsions, respiratory issues and death might ensue.

It is extremely important you seek medical attention immediately if you suspect methanol poisoning. Our 24/7 Emergency Assistance team can help you find a nearby medical facility while overseas.

What You Need to Know About Methanol Poisoning (3)

You need to stay more vigilant about what you eat and drink when travelling. Check out these important nutrition tips!

  • Only buy alcohol from reputable venues and shops.
  • Avoid pre-mixed drinks that have not been poured in front of you. This includes any ‘bucket co*cktails’ or colourful ‘ready-to-drink’ creations.
  • Avoid buying from market stalls or informal stores.
  • If the price of your drink is too good to be true, then it probably is. Imported spirits can be pricey in places like Bali and Thailand. If your drink or bottle of spirits is much cheaper than what you would pay at home, it is most likely a home brew.
  • Check that the seals are intact and that the label is free from spelling errors or poor labeling.
  • Learn to recognise the signs and symptoms of methanol poisoning and seek help right away. Listen to your body and seek help immediately.
  • Never leave your drink unattended.

If you think you or someone you know has methanol poisoning, seek medical help immediately.

Methanol poisoning is often treated by administering ethanol, with the addition of other complex therapies. The sooner the poisoning is treated, the better the outcome.

For more medical tips when travelling, be sure to check out our blog.

Consider protecting yourself and your trip with Cover-More travel insurance.Get a free quote online!

What You Need to Know About Methanol Poisoning (4)

Sources:

Material on this website is provided for informational purposes only. It isgeneral information and discussion about medicine, health and related subjects may not apply to you as an individual, and isnota substitute for your own doctor’s medical care or advice. The words and other content provided on this website, and in any linked materials, are not intended and should not be construed as medical advice. If the reader or any other person has a medical concern, they should consult with an appropriately licensed physician or other health care worker. Nothing contained on the website is intended to establish a physician-patient relationship, to replace the services of a trained physician or health care professional, or otherwise to be a substitute for professional medical advice, diagnosis, or treatment. The views and opinions expressed on this website have no relation to those of any academic, hospital, practice or other institution with which the authors are affiliated. They do not necessarily reflect the opinions of Cover-More Insurance Services Pty Ltd.Never disregard medical advice or delay seeking medical care because of something you have read on or accessed through this website. If you think you may have a medical emergency, call your doctor or emergency services immediately.

What You Need to Know About Methanol Poisoning (2024)

FAQs

What You Need to Know About Methanol Poisoning? ›

Adverse health effects from methanol poisoning may not become apparent until after an asymptomatic period of 1 to 72 hours. Methanol's toxicity is due to its metabolic products. The by-products of methanol metabolism cause an accumulation of acid in the blood (metabolic acidosis), blindness, and death.

What are the stages of methanol poisoning? ›

Patients who present within the first 12 to 24 hours following ingestion may appear normal, and this is described as the latent period. Nausea, vomiting, and abdominal pain subsequently ensue, followed by central nervous system (CNS) depression and hyperventilation as metabolic acidosis occurs.

What are the health concerns for methanol? ›

lungs causing coughing, wheezing and/or shortness of breath. abdominal pain. ► Exposure to high concentrations can cause headache, dizziness, drowsiness, fatigue, loss of consciousness and death.

What is the clinical presentation of methanol toxicity? ›

Early symptoms of methanol poisoning include nausea, vomiting, dizziness along with epigastric pain. Later -after a period of 12 to 48 h since ingestion- methanol poisoning can lead to neurologic dysfunction, blindness and even death.

What are two hazards associated with methanol? ›

It is a poisonous substance that can be absorbed through the eyes, skin, lungs, and digestive system. Overexposure can cause death. Workers may be harmed by exposure to methyl alcohol. The level of harm depends upon the dose, duration, and work being done.

Is methanol poisoning permanent? ›

Blindness is common and often permanent despite medical care. Intake of methanol affects multiple organs. Organ damage may be permanent. How well the person does depends on how much poison is swallowed and how soon treatment is received.

How does the body get rid of methanol? ›

Inside the body, methanol is oxidized to formaldehyde (a reaction catalyzed by alcohol dehydrogenase), then to formic acid (a reaction catalyzed by formaldehyde dehydrogenase), and finally to carbon dioxide (a reaction catalyzed by formyl-tetrahydrofolic acid dehydrogenase).

What are some facts about methanol poisoning? ›

Methanol may cause birth defects of the central nervous system in humans. Chronic poisoning from repeated exposure to methanol vapor may produce inflammation of the eye (conjunctivitis), recurrent headaches, giddiness, insomnia, stomach disturbances, and visual failure.

What is the triad of methanol poisoning? ›

Systemic manifestation of methanol intoxication in humans

The classic triad of systemic symptoms occurring in the course of methanol includes CNS depression, metabolic disorders manifested mainly as systemic metabolic acidosis, and visual disturbances (Gabay et al.

What are the late stage clinical CNS effects of methanol intoxication? ›

Drowsiness, headache, nausea, vomiting abdominal pain, and blurry vision are the common presenting symptoms and may be followed by blindness, coma, and cardiac arrest if intoxication is severe. Permanent visual loss may occur within hours to days after ingestion of methanol.

What PPE is needed for handling methanol? ›

The level of risk of exposure to methanol will dictate the appropriate level of personal protective equipment required. At a minimum, safety glasses with side shields or safety goggles and task- appropriate gloves are recommended. Depending on the situation, additional personal protective equipment may be required.

How to avoid methanol poisoning? ›

To avoid the risk of methanol poisoning, buy alcohol from settings that are licensed to sell alcohol, such as in the duty free section of airports or reputable bars. Don't buy alcohol that is unreasonably cheap, has an unlabeled bottle, or looks tampered with.

What is the smell of methanol? ›

Methanol appears as a colorless fairly volatile liquid with a faintly sweet pungent odor like that of ethyl alcohol. Completely mixes with water. The vapors are slightly heavier than air and may travel some distance to a source of ignition and flash back.

What is the pathology of methanol poisoning? ›

The major damage occurs at the retrolaminar optic nerve, with intra-axonal swelling and organelle destruction. Little to no change is seen in the retina. Methanol also affects the basal ganglia. Hemorrhagic and nonhemorrhagic damage to the putamen are common problems in cases of severe intoxication.

What are the effects of methanol on the brain? ›

Most patients note visual disturbances, secondary to optic nerve necrosis or demyelination, as one of the first symptoms. Central nervous symptoms are common and include headache, dizziness, weakness, and malaise. Large amounts of methanol ingestion can result in seizure, stupor, coma, and sometimes death.

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