On the part of the digestive system: more often 1% - nausea, vomiting, heartburn, diarrhea, constipation, abdominal pain, flatulence, increased levels of "liver" enzymes, gastrointestinal bleeding,
less than 1% - peptic ulcer with possible complications (bleeding, perforation), gastritis, jaundice, melena, the appearance of blood in the vomit, esophageal damage, aphthous stomatitis, glossitis, hepatitis.
On the part of the nervous system: more often 1% - headache, dizziness, anxiety, sleep disturbances, increased reflexes, tremor, amnesia, asthenia, depression, somnolentia;
less than 1% - ataxia, ischemic brain damage, weakness, paresthesia, convulsions.
From the senses: more than 1% - visual impairment (blurred vision, diplopia, scotoma), tinnitus, hearing loss; less than 1% - conjunctivitis, impaired sense of smell and taste;
the relationship with the use of the drug is not established - increased intraocular pressure, hemorrhage in the retina, retrobulbar neuritis.
From the skin: more often 1% - skin itching, skin rash; less than 1% - alopecia, urticaria, eczema, toxic dermatitis, multiform exudative erythema, incl. Stevens-Johnson syndrome, toxic epidermal necrolysis (Lyell syndrome), increased photosensitivity.
On the part of the genitourinary system: more often 1% - fluid retention, urinary tract infection;
less than 1% - hematuria, increased uric acid, interstitial nephritis, kidney failure.
On the part of the organs of hematopoiesis and immune system: less than 1% - anemia (including hemolytic and aplastic anemia), decreased hemoglobin and hematocrit, thrombocytopenic purpura, leukopenia, thrombocytopenia, eosinophilia, agranulocytosis.
On the part of the respiratory system: more often 1% - rhinitis; less than 1% - cough, bronchospasm. From the cardiovascular system: less than 1% - increased blood pressure, vaso dilation, edema, congestive heart failure; the relationship with the use of the drug is not established - angina pectoris, arrhythmia, myocardial infarction.
Allergic reactions: less than 1% - anaphylactoid reactions, anaphylactic shock (usually develops rapidly), swelling of the lips and tongue, allergic vasculitis.
Other: less than 1% - fever, chills.