Answer
Yes. It counteracts warfarin and other coumarin anticoagulants, although severe bleeding may also need faster-acting clotting-factor replacement.
Sources for this answer
- Konakion MM 10 mg/ml / Phytomenadione 10 mg/1 ml solution for injection — Current selected SmPCemc · Summary of Product Characteristics
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.