For what type of poisons is vomiting dangerous and why?

Vomiting is generally not recommended for poisonings, and can be dangerous in many cases. Here's why:

Dangerous poisons where vomiting is NOT recommended:

* Caustic substances (acids and alkalis): These substances can cause severe damage to the esophagus and mouth on their way up and down. Examples include:

* Lye (sodium hydroxide)

* Drain cleaner

* Battery acid

* Petroleum products: These can cause aspiration pneumonia (inhaling the substance into the lungs) which is life-threatening. Examples include:

* Gasoline

* Kerosene

* Cleaning fluids

* Corrosives: These substances can cause severe burns to the digestive tract. Examples include:

* Bleach

* Ammonia

* Certain cleaning products

* Some medications: Certain medications can be more dangerous if vomited, such as some antidepressants and iron supplements.

* Substances that cause neurological effects: These can make vomiting more dangerous, potentially causing aspiration. Examples include:

* Certain pesticides

* Some drugs of abuse

Why Vomiting Can Be Dangerous:

* Risk of aspiration: Vomiting can cause the poison to be inhaled into the lungs, leading to aspiration pneumonia.

* Damage to the esophagus: Caustic substances can cause severe burns to the esophagus during the vomiting process.

* Increased absorption: In some cases, vomiting can actually increase the absorption of the poison into the bloodstream.

What to do in case of poisoning:

* Call the Poison Control Center immediately: 1-800-222-1222 (US) or your local emergency number. They can provide specific guidance based on the substance ingested.

* Follow their instructions carefully: They may advise you to give activated charcoal or other treatments.

* Do not induce vomiting unless directed by a medical professional: This is important to avoid further complications.

Important note: This information is for general knowledge only and should not be used as a substitute for medical advice. Always consult with a healthcare professional for any health concerns.