Allergic reactions (rash, itching, urticaria), dizziness, drowsiness, decreased speed of psychomotor reactions, leukopenia, granulocytopenia, agranulocytosis, palpitation, nausea and vomiting, constipation. With prolonged uncontrolled admission in high doses, it is possible: a violation of the liver and kidney function; addiction (weakening of the analgesic effect); drug dependence (codeine). All side effects of the drug, including those not listed in this manual, should be reported to your doctor.