Answer
Call 999 for breathing difficulty, facial or throat swelling, wheezing or collapse. Severe blistering or peeling skin reactions also need urgent medical assessment.
Sources for this answer
- Ampicillin 500 mg powder for solution for injection — Current selected SmPCemc · Summary of Product Characteristics
- NHSNHS · NHS medicine guidance
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.