Allergic reactions: urticaria, skin hyperemia, skin itching, eosinophrenia, fever, multiforme exudative erythema (including Stevens-Johnson syndrome), toxic epidermal necrolysis (Lyell's syndrome), anaphylactic shock, reactions resembling serum sickness.
From the nervous system: headache, dizziness, tinnitus, convulsions. From the digestive system: dry mouth, anorexia, nausea, vomiting, diarrhea, constipation, flatulence, abdominal pain, dysbiosis, impaired liver function, cholestasis, cholestatic jaundice, candidiasis, stomatitis, glossitis, pseudomembranous colitis.
From the hematopoiesis: pancytopenia, leukopenia, neutropenia, agranulocytosis, thrombocytopenia, hemolytic anemia, aplastic anemia, bleeding.
From the urinary system: interstitial nephritis, impaired renal function, acute renal failure.
On the part of the reproductive system: vaginitis, itching of the genitals.
Laboratory indicators: increased activity of "hepatic" transaminases and alkaline phosphatase, hyperbilirubinemia, increased urea nitrogen, hypercreatininaemia, increased prothrombin time.
Other: Candidiasis, dyspnea, development of hypovitaminosis B.