Local reactions: phlebitis, pain along the vein, soreness and infiltration at the site of intramuscular injection.
Allergic reactions: urticaria, chills or fever, rash, itchy skin, rarely - bronchospasm, eosinophilia, malignant exudative erythema (Stevens-Johnson syndrome), toxic epidermal necrolysis (Lyell's syndrome), angioedema, extremely rarely anaphylactic shock.
From the nervous system: headache, dizziness, encephalopathy.
From the urinary system: disturbance of kidney function, oliguria, interstitial nephritis.
From the digestive system: nausea, vomiting, diarrhea or constipation, flatulence, abdominal pain, dysbiosis, impaired liver function, rarely - candidal stomatitis and / or glossitis, pseudomembranous enterocolitis.
From the hematopoiesis: Hemolytic anemia, leukopenia, neutropenia, granulocytopenia, thrombocytopenia.
From the cardiovascular system: potentially life-threatening arrhythmias after a rapid bolus injection into the central vein.
Laboratory indicators: azotemia, increased urea concentration in the blood, increased activity of "liver" transaminases and alkaline phosphatase, hypercreatininemia, hyperbilirubinemia, Coombs positive reaction, hypocoagulation.
Other: Superinfection (in particular, candidal vaginitis).