Overview
It kills bacteria. It doesn't work on viruses.
What it's used for
- Sinus and ear infections
- Strep throat
- Bronchitis and some pneumonias
- Early Lyme disease
- Urinary tract and skin infections
How to take it
- Take tablets with food. Finish the full course.
Your dose depends on your health and other medicines. Always follow your prescription label, and ask your pharmacist if anything is unclear.
Side effects
Common side effects
- Diarrhea
- Nausea
- Vaginal yeast infection
Warnings
- Tell your provider about any penicillin or cephalosporin allergy.
Other medicines, foods, and alcohol
- Antacids and acid reducers can lower absorption.
- Probenecid raises its level.
Tell your provider and pharmacist about every medicine, vitamin, and supplement you take.
Pregnancy and breastfeeding
Commonly used in pregnancy when needed.
Missed doses, overdose, and storage
If you miss a dose
Take it as soon as you remember. If it's almost time for the next dose, skip the missed one. Don't double up, and still finish the full course.
If someone takes too much
Call Poison Control at 1-800-222-1222 or get help online at poison.org. Call 911 if the person collapses, has a seizure, has trouble breathing, or can't be woken.
Storing it
Store at room temperature, away from heat and moisture (not in the bathroom), and out of reach of children and pets.
Conditions it's used for
Sources
- DailyMed: FDA drug label for Cefuroxime (U.S. National Library of Medicine)
- MedlinePlus: Drugs, herbs, and supplements
- FDA: Drugs@FDA
Last updated 2026-11-13.