Poison ingestion<unk> is used to treat many types of oral poisonings such as phenobarbital and carbamazepine. It is not effective for a number of poisonings including: strong acids or bases, iron, lithium, arsenic, methanol, ethanol or ethylene glycol. Although<unk> is the most commonly used agent for GI decontamination in poisoned patients, medical professionals use discretion when determining whether or not its use is indicated. In a study of acute poisonings from agricultural pesticides and yellow oleander seeds, the administration of<unk>  carbon did not affect survival rates. Gastrointestinal tract-related issues<unk>  biscuits were sold in England starting in the early 19th century, originally as remedy to flatulence and stomach trouble. Tablets or capsules of<unk>  carbon are used in many countries as an over-the-counter drug to treat diarrhea, indigestion, and flatulence. There is some evidence of its effectiveness to prevent diarrhea in cancer patients who have received irinotecan. It can interfere with the absorption of some medications, and lead to unreliable readings in medical tests such as the guaiac card test.<unk>  carbon is also used for bowel preparation by reducing intestinal gas content before abdominal radiography to visualize bile and pancreatic and renal stones. A type of<unk>  biscuit has also been marketed as a pet care product. Other Claims that<unk> will do things such as whiten teeth, cure alcohol-induced hangovers, and prevent bloating, are not supported by evidence.<unk> cleanses also lack evidence and are considered pseudoscience.
Activated charcoal 
Drotaverine
Sodium thiosulfate 
Secobarbital
Fomepizole
Ethallobarbital
Acetylcysteine
Pivhydrazine