On the part of the digestive system: nausea, diarrhea, vomiting, abdominal pain, flatulence, decreased appetite, cholestatic jaundice (especially in patients with liver disease), hepatitis, hepatonecrosis.
From the central nervous system: dizziness, headache, increased fatigue,anxiety, tremor, insomnia, nightmarish dreams, peripheral paralysis (anomaly of perception of pain), increased sweating, increased intracranial pressure, confusion, depression, hallucinations, and other manifestations of psychotic reactions (occasionally progressing to conditions in which the patient can cause harm), migraine, fainting, thrombosis of the cerebral arteries.
From the senses: a violation of taste and smell, visual impairment (diplopia, change in color perception), noise in the ears, hearing loss.
On the part of the urinary system: hematuria, crystalluria (especially in alkaline urine and low diuresis), glomerulonephritis, dysuria, polyuria, urinary retention, albuminuria, urethral bleeding, hematuria, decreased renal nitrogen function, interstitial nephritis.
On the part of the hematopoiesis system: eosinophilia, leukopenia, neutropenia, change in the number of platelets, hemolytic anemia.
From the cardiovascular system: tachycardia, cardiac arrhythmias, arterial hypotension.
Allergic reactions: skin itching, urticaria, the formation of blisters accompanied by bleeding, and the appearance of small nodules that form scabs, drug fever, pinpoint hemorrhages on the skin (petechia), swelling of the face or larynx, dyspnea, eosinophilia, increased photosensitivity, vasculitis, nodal erythema, multiforme exudative erythema (including Stevens-Johnson syndrome), toxic epidermal necrolysis (Lyell's syndrome).
On the part of laboratory indicators: increased urea concentration, creatinine, increased activity of hepatic transaminases, alkaline phosphatase, lactate dehydrogenase, bilirubin.
Other: arthralgia, arthritis, tendovaginitis, tendon ruptures, asthenia, myalgia, superinfections (candidiasis, pseudomembranous colitis), "tides" of blood to the face; rarely - photosensitivity; pain, burning at the injection site, phlebitis.