About cefaclor
Second-generation cephalosporin antibiotic
Used for
- Treats susceptible bacterial infections, including ear, throat, skin, and urinary infections.
Usual adult dose
Usually 250–500 mg every 8 hours; dose and duration depend on infection.
Usual dose in children
Usually 20–40 mg/kg/day divided every 8 hours; maximum 1 g/day.
Common side effects
- Diarrhea, nausea, or vomiting
- Rash or itching
- Allergic reactions
- Rarely, severe or persistent diarrhea
Important warnings
- Does not treat viral infections such as colds or flu.
- Tell clinicians about cephalosporin or penicillin allergies.
- Seek urgent care for breathing difficulty or severe allergic symptoms.
- Kidney impairment may require dose adjustment.
Pregnancy
Use when clinically needed; available evidence has not shown a clear increased risk of birth defects.
Breastfeeding
Generally compatible; monitor the infant for diarrhea, rash, or thrush.
Interactions
- Warfarin: may increase bleeding risk; monitoring may be needed.
- Probenecid may increase cefaclor levels.
- Antacids containing magnesium or aluminum 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 It may be incomplete or out of date.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.