From the digestive system: often - epigastric pain, nausea, vomiting, diarrhea, dyspepsia, flatulence, anorexia, increased activity of aminotransferases; rarely - gastritis, proctitis, bleeding from the digestive tract (vomiting with blood, melena, diarrhea with a trace of blood), gastrointestinal ulcers (with or without bleeding or perforation), hepatitis, jaundice, impaired liver function; very rarely - stomatitis, glossitis, esophagitis, nonspecific hemorrhagic colitis, exacerbation of ulcerative colitis or Crohn's disease, constipation, pancreatitis, fulminant hepatitis.
From the nervous system: often - headache, dizziness; rarely - drowsiness; very rarely - a violation of sensitivity, incl. paresthesia, memory disorders, tremors, convulsions, anxiety,cerebrovascular disorders, aseptic meningitis, disorientation, depression, insomnia, night "nightmares", irritability, mental disorders.
From the sense organs: often - vertigo; very rarely - visual impairment (blurred vision, diplopia), hearing impairment, tinnitus, a violation of taste sensations.
From the urinary system: very rarely - acute renal failure, hematuria, proteinuria, interstitial nephritis, nephrotic syndrome, papillary necrosis.
On the part of the organs of hematopoiesis: very rarely - thrombocytopenia, leukopenia, hemolytic and aplastic anemia, agranulocytosis.
Allergic reactions: anaphylactic / anaphylactoid reactions, including a marked decrease in blood pressure (BP) and shock; very rarely - angioedema (including face).
From the cardiovascular system: very rarely - palpitations, chest pain, increased blood pressure, vasculitis, heart failure, myocardial infarction. From the respiratory system: rarely - exacerbation of bronchial asthma, dyspnea; very rarely - pneumonitis.
From the skin: often - skin rash; rarely - hives; very rarely - bullous eruptions, erythema including. multiform and Stevens-Johnson syndrome, Lyell's syndrome, exfoliative dermatitis, itching, hair loss, photosensitivity, purpura, incl. allergic.
Other: rarely - swelling.