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Cephalexin Hydrochloride

Published: July 26, 2026Updated: August 27, 2026

Cephalexin Hydrochloride is a first-generation cephalosporin antibiotic used to treat a variety of bacterial infections by killing or stopping the growth of bacteria. It is commonly prescribed for skin and soft tissue infections, respiratory tract infections, urinary tract infections, and bone infections.

Quick summary

Cephalexin Hydrochloride is a penicillin-related antibiotic used to treat various bacterial infections by inhibiting bacterial cell wall synthesis.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 27, 2026Editorial policy

Key facts at a glance

RxNorm
281942
Generic
Cephalexin Hydrochloride
Class
pin-variant
Brands
—
Availability
rx
Lactation
unknown
Routes
—
Forms
—
Regions
US, EU, CN, JP
Monitoring
—

This page is for informational purposes only.

Do not use this information to diagnose yourself or to replace a physician's advice. Always consult a qualified healthcare provider before starting, stopping, or changing any medication. If you believe you are experiencing a medical emergency, call your local emergency number immediately.

Treats skin and soft tissue infections, respiratory tract infections, urinary tract infections, bone infections, and certain ear infections caused by susceptible bacteria.

As a first-generation cephalosporin, it inhibits bacterial cell wall synthesis by binding to penicillin-binding proteins, leading to bacterial cell death.

Patients with penicillin allergies may have cross-reactivity. Common side effects include gastrointestinal symptoms. Complete the full course even if symptoms improve. May interact with certain medications including probenecid and metformin.

Official drug label

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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 27, 2026. · Read our editorial policy