The frequency is classified according to the headings, depending on the incidence of one case in percent: very often (> 10), often (<10- <100), infrequently (<100- <1000), rarely (<1000- <10000), very rarely (<10000).
Gastrointestinal tract: often - diarrhea, nausea, vomiting; infrequently - constipation, flatulence,heartburn, gastritis; very rarely - abdominal pain, stomatitis, tarry stool, gastrointestinal bleeding, ulcer and / or perforation of the stomach or duodenum.
Central nervous system: infrequently - dizziness; rarely - a sense of fear, nervousness, nightmarish dreams; very rarely - headache, drowsiness, encephalopathy (Reye syndrome).
Respiratory system: infrequently - shortness of breath; very rarely - bronchial asthma, bronchospasm. The cardiovascular system: infrequently - arterial hypertension; rarely - tachycardia, hemorrhages, "hot flashes".
Sense organs: rarely - blurred vision, very rarely - dizziness.
Skin and mucous membranes: infrequently - itching, rash, increased sweating; rarely: erythema, dermatitis; very rarely: urticaria, angioedema, facial swelling, multiform exudative erythema, incl. Stevens-Johnson syndrome, toxic epidermal necrolysis (Lyell's syndrome).
Liver and biliary system: often - increased "liver" transaminases; very rarely - hepatitis, fulminant hepatitis, jaundice, cholestasis.
Kidney and urinary system: infrequently - swelling; rarely - dysuria, hematuria,
urinary retention, hyperkalemia; very rarely interstitial nephritis.
Hematopoiesis: rarely - anemia, eosinophilia; very rarely - thrombocytopenia, leukopenia, agranulocytosis, pancytopenia, purpura, prolongation of bleeding time
Allergic reactions: rarely - hypersensitivity reactions; very rarely anaphylactoid reactions.
General reactions: rarely - general weakness; very rarely - hypothermia.
In case of occurrence of other, not mentioned above, side effects or deterioration of state of health it is necessary to immediately consult a doctor.