Side effects are most frequent when using high doses of the drug:
- from the digestive system: constipation, abdominal pain, indigestion, nausea, diarrhea, ulcerative stomatitis, erosive-ulcerative lesions and bleeding of the gastrointestinal tract,NSAID-gastropathy (lesion of the antral part of the stomach in the form of erythema of the mucosa, hemorrhages, erosions and ulcers), increased activity of "liver" enzymes, impaired liver function, jaundice, bloody vomiting, melena;
- from the central nervous system: hearing loss, dizziness, headache, drowsiness, depression, sleep disorders, inability to concentrate, insomnia, malaise, slowing of the speed of psychomotor reactions, aseptic meningitis, cognitive dysfunction;
- from the skin: itching, ecchymosis, increased sweating, purpura, alopecia, photo dermatosis;
- sensory organs: tinnitus, visual impairment, hearing impairment;
- from the cardiovascular system: swelling of the face, limbs, shortness of breath, palpitations, occurrence or aggravation of existing chronic heart failure, vasculitis;
- from the genitourinary system: glomerulonephritis, hematuria, interstitial nephritis, nephrotic syndrome, renal failure, renal papillary necrosis, menstrual irregularities;
- from the hemopoietic organs: eosinophilia, granulocytopenia, leukopenia, thrombocytopenia, aplastic anemia, hemolytic anemia;
- from the respiratory system: eosinophilic pneumonitis;
- allergic reactions: skin rash, hives, angioedema, toxic epidermal necrolysis, erythema multiforme, Stevens-Johnson syndrome;
- others: thirst, hyperthermia, hyperglycemia, hypoglycemia, myalgia and muscle weakness.