Allergic reactions: urticaria, skin hyperemia, itching, itching in the genital area, eosinophilia, fever, multiforme exudative erythema (including Stevens-Johnson syndrome), toxic epidermal necrolysis (Lyell's syndrome).
From the nervous system: headache, dizziness, tinnitus.
From the genitourinary system: vaginitis.
From the urinary system: interstitial nephritis.
From the digestive system: nausea, vomiting, stomatitis, diarrhea, abdominal pain, constipation, pseudomembranous enterocolitis, dysbacteriosis, cholestasis; jaundice
From the hematopoiesis: pancytopenia, leukopenia, neutropenia, agranulocytosis, thrombocytopenia, aplastic anemia, hemolytic anemia, bleeding.
Laboratory indicators: increased activity of "hepatic" transaminases and alkaline phosphatase, hyperbilirubinemia, increased urea nitrogen, hypercreatininaemia, increased prothrombin time.
Other: Candidiasis, development of hypovitaminosis B, dyspnea.