Answer
Fever, headache, aching, chills and tiredness can be injection-related reactions, particularly after the first injection. Hives, breathing difficulty, faintness, or facial, mouth or throat swelling may indicate allergy and require urgent help.
Sources for this answer
- Kesimpta 20 mg solution for injection in pre-filled pen — 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.