Symptoms: when taken for a long period at doses of 400-800 U / day (1 mg = 1.21 ME) - blurred vision, dizziness, headache, nausea, unusual fatigue, diarrhea, gastralgia, asthenia; when taking more than 800 units / day for a long period - an increased risk of bleeding in patients with hypovitaminosis K, a metabolic disorder of thyroid hormones, a disorder of sexual function, thrombophlebitis, thromboembolism.
Treatment - symptomatic, withdrawal of the drug, the appointment of glucocorticosteroids.