métamizole
Metamizole, also known as dipyrone or novalgin, is a nonsteroidal anti-inflammatory drug (NSAID) used to treat pain and fever. It is available by prescription in many countries, but its use is restricted or banned in others due to a rare but serious side effect called agranulocytosis, a severe drop in white blood cells.
The mechanism of action of metamizole is not fully understood but is believed to involve inhibition of
It is effective in treating moderate to severe pain, including postoperative pain, colic, and cancer pain. It
Side effects, besides agranulocytosis, can include allergic reactions, gastrointestinal disturbances, and a drop in blood pressure.