Anorexia, nausea, vomiting, gastralgia, diarrhea, erosive-ulcerative lesions of the gastrointestinal tract, gastrointestinal bleeding, hepatic and / or renal insufficiency, increased blood pressure, tachycardia. Allergic reactions: skin rash, Quincke's edema, bronchospasm.
With prolonged admission - dizziness, headache, visual impairment, tinnitus,reduction of platelet aggregation, hypocoagulation, hemorrhagic syndrome (epistaxis, bleeding gums, purpura, etc.), renal damage with papillary necrosis; deafness; Stevens-Johnson syndrome, toxic epidermal necrolysis (Lyell syndrome), Reye's syndrome in children (hyperpyrexia, metabolic acidosis, disorders of the nervous system and psyche, vomiting, liver dysfunction).