<prompt> In Dicumarol poisoning , which Vit K is used ?MenadioneMenaqunonePhytonadioneNone of the above  <response>: Ans. is c i.e., Phytonadione Vit Ki Phytonadione is the preparation of choice for overdose of oral anticoagulants Dicumarol. Remember Specific antidote for oral anticoagulants -- Vit K1 Specific antidote for heparin Protamine Specific antidote for fibrinolytics e.g. streptokinase --- antifibrinolytics epsilone amino-caproic acid, Tranaexaemic acid, Aprotinin. 