About cefaclor
Second-generation cephalosporin antibiotic
Used for
- Treats susceptible bacterial ear, throat, skin, and urinary infections.
Usual adult dose
Usually 250–500 mg every 8 hours, depending on infection.
Usual dose in children
Usually 20–40 mg/kg daily, divided every 8 hours; maximum 1 g daily.
Common side effects
- Diarrhea, nausea, or vomiting
- Rash or itching
- Rare severe allergic reactions
- Rare severe or persistent diarrhea
Important warnings
- Does not treat viral infections such as colds or flu.
- Tell clinicians about cephalosporin or serious penicillin allergy.
- Seek urgent care for breathing difficulty, facial swelling, or severe rash.
- Persistent watery or bloody diarrhea may indicate serious bowel inflammation.
Pregnancy
Use when clinically needed; available evidence has not established major pregnancy risks.
Breastfeeding
Small amounts may enter milk; monitor infants for diarrhea, rash, or thrush.
Interactions
- Warfarin: may increase bleeding risk; monitoring may be needed.
- Probenecid: may increase cefaclor levels.
- Antacids containing magnesium or aluminium may reduce absorption.
AI-generated from general medical knowledge, not from this product's official leaflet. It may be incomplete or out of date. Not medical advice — ask a pharmacist or doctor before making any decision.