Answer
Yes, although reported allergic or anaphylactic-type reactions are rare. Stop administration and obtain urgent help for breathing difficulty, chest tightness, widespread hives, faintness or collapse.
Sources for this answer
- Fibrogammin 250 / 1250 IU — 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.