Allergic reactions that may occur are usually skin reactions: rash, redness, itching, swelling, gradually swelling of the face and tongue, and a lot more dangerous anaphylactic shock which has the following symptoms: itching, cold sweat, dizziness, lethargy, nausea, redness or paleness of skin and shortness of breath. Metamizole can cause damage to the bone marrow (granulocytopenia, agranulocytosis, hemolytic anemia, aplastic anemia). Cases of agranulocytosis are rare, but they are still very serious. Symptoms of agranulocytosis include: high fever, chills, sore throat, difficulty swallowing, inflammation of the mouth, nose, throat. Metamizole can cause digestive disorders such as nausea, vomiting, dry mouth,...