Allergic reactions are possible: urticaria, systemic allergic reactions (up to the development of anaphylactic shock). Possible the development of hypoglycemia (in connection with improving the absorption of glucose). With oral administration, dyspepsia may occur, including nausea, heartburn, and vomiting.
With intravenous administration, convulsions are rarely possible; diplopia; point bleeding in mucous membranes, skin; thrombocytopathy; hemorrhagic rash (purpura), thrombophlebitis.
With rapid administration, it is possible to increase intracranial pressure (the appearance of a feeling of heaviness in the head); difficulty breathing.