Rinshō shinkeigaku = Clinical neurology
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Warfarin potassium (warfarin) is one of anticoagulants. Its anticoagulant effect is induced by inhibiting vitamin K in a complex manner. It is used effectively and safely in preventing cerebral embolism of cardiac origin, provided that thrombotest (TT) values is maintained from 10 to 20%. ⋯ There was no evidence of discontinuing warfarin, or taking drugs containing vitamin K or Natto. Chlorella is one of vitamin K-rich foods. Thus, it may inhibit the anticoagulant effect of warfarin.