Allergic reactions: skin rash, hives, angioedema, Stevens-Johnson syndrome, toxic epidermal necrolysis, exanthema, anaphylactic and anaphylactoid reactions.
From the hematopoiesis: leukopenia, neutropenia, eosinophilia, anemia.
On the part of the digestive system: vomiting, diarrhea, nausea, abdominal pain; increased activity of "liver" transaminases, alkaline phosphatase, hepatitis (when used in high doses for a long time).
From the central nervous system: dizziness, headache, drowsiness, convulsions.
From the urinary system: hyperkreatininemia, hematuria, cylindruria, glomerulonephritis (when used in high doses for a long time).
Other: hair loss.
May have a negative effect on the development of the fetus.