Answer
Yes. Antibiotic-associated colitis can begin during or after treatment. Severe, persistent, bloody or mucus-containing diarrhoea needs prompt medical assessment.
Sources for this answer
- Cefaclor 500 mg capsules — 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.