What is "metamizole"

n. (context organic compound English) A non-steroidal anti-inflammatory drug used as a painkiller and fever reducer.

Metamizole (Methyl, Amino und Pyrazol, INN), or dipyrone ( BAN, USAN), is an ampyrone sulfonate analgesic (pain reliever), antispasmodic (spasm reliever) and antipyretic (fever reducer). Like paracetamol, it has minimal anti-inflammatory effects. It is most commonly given orally or parenterally (by injection) to prevent and treat pain related to surgery or for the treatment of acute pain. It was first introduced into clinical use in Germany in 1922 under the brandname "Novalgin" and for many years it was available over-the-counter in most countries, until its toxicities became apparent. Although it is still available over-the-counter in some countries, it is now a prescription drug in developed countries, due to its potential for adverse events, including agranulocytosis.

Metamizole is marketed under various trade names.