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Antibiotics for Mastitis While Breast-Feeding


Generic Name Brand Name
cephalexin Keflex

How It Works

Antibiotics eliminate infection by killing bacteria.

Why It Is Used

Antibiotics are used to treat a bacterial breast infection (mastitis) and are prescribed after a breast abscess is drained.

How Well It Works

Treatment of breast infections with antibiotics usually is successful if the full prescription is taken. Treatment does not harm the breast-feeding baby.

Side Effects

The side effects of penicillin-based antibiotics, such as dicloxacillin, are rare. If they occur, they usually are mild and include:

The side effects of cephalosporin antibiotics, such as cephalexin, are rare. If they occur, they usually are mild and include:

See Drug Reference for a full list of side effects. (Drug Reference is not available in all systems.)

What To Think About

The entire supply of antibiotics prescribed should be taken, even after symptoms of the infection have cleared up.

Resistant bacteria have become more common causes of infections. If your mastitis is caused by a resistant strain of bacteria, the first treatment with an antibiotic may not cure it. Some women who have mastitis may need a second treatment with a different antibiotic.

Complete the new medication information form (PDF)(What is a PDF document?) to help you understand this medication.

ByHealthwise Staff
Primary Medical ReviewerSarah Marshall, MD - Family Medicine
Specialist Medical ReviewerKirtly Jones, MD - Obstetrics and Gynecology

Current as ofNovember 14, 2014

WebMD Medical Reference from Healthwise

Last Updated: November 14, 2014
This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.

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