Hypoglycemia, temporary visual impairment, GI disturbances. Rarely thrombopenia, leucopenia, haemolytic anaemia. Occasionally allergic or pseudoallergic reactions eg, itching, urticaria or rashes. In isolated cases, allergic vasculitis, photosensitivity or a decrease in serum sodium may occur. Inform the doctor in case of any adverse reactions related to drug use.