Answer
It must not be used after a severe reaction to a penicillin or another beta-lactam. A clinician should clarify any less severe allergy before deciding whether it is suitable.
Sources for this answer
- Ceftriaxone powder for solution for injection 1g — 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.