About cephalexin monohydrate
First-generation cephalosporin antibiotic
Used for
- Treats certain bacterial infections, including skin, throat, ear, and urinary infections.
Usual adult dose
Commonly 250–500 mg every 6 hours, or 500 mg every 12 hours, depending on infection.
Usual dose in children
Commonly 25–50 mg/kg daily in divided doses; higher doses may be used for some infections.
Common side effects
- Diarrhea
- Nausea or vomiting
- Stomach discomfort
- Rash
Important warnings
- Not effective against viral infections such as colds or flu.
- Serious allergic reactions can occur, especially with cephalosporin allergy.
- Dose adjustment may be needed with kidney impairment.
- Complete the prescribed course unless a clinician changes treatment.
Pregnancy
Generally considered usable during pregnancy when needed; clinical assessment determines suitability.
Breastfeeding
Usually compatible with breastfeeding; occasional infant diarrhea or thrush may occur.
Interactions
- Probenecid can increase cephalexin levels.
- Metformin levels may rise.
- Warfarin effects may increase; bleeding monitoring may be needed.
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 It may be incomplete or out of date.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.