When taken for a long period in doses of 400-800 units / day 1 mg = 1.21 ME) - blurred vision, dizziness, headache, nausea, unusual fatigue, diarrhea, gastralgia. If you take more than 800 units / day for a long period - an increased risk of bleeding in patients with hypovitaminosis K, a disorder of thyroid hormone metabolism, a sexual function disorder, thrombophlebitis, thromboembolism, necrotic colitis, sepsis, hepatomegaly, hyperbilirubinemia, renal failure, retinal hemorrhage eyes, hemorrhagic stroke, ascites.
Treatment: symptomatic, withdrawal of the drug, the appointment of glucocorticosteroid drugs.