Answer
Severe allergy-like reactions have been reported after intravenous administration. Breathing difficulty, swelling or collapse requires emergency help.
Sources for this answer
- Konakion MM Paediatric / Phytomenadione 2 mg/0.2 ml solution for injection — Current selected SmPCemc · Summary of Product Characteristics
- 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.