> ## Content Index
> Fetch the complete content index at: https://www.foodconsumer.org/llms.txt
> Use this file to discover other available public pages before exploring further.

# Do antibiotics fight viruses or bacteria?
- URL: https://www.foodconsumer.org/do_antibiotics_fight_viruses_or_bacteria_1211100818/
- Published: 2010-11-12T21:15:00.000Z
- Updated: 2026-09-15T13:03:21.000Z
- Description: A Get Smart About Antibiotics Week explainer: antibiotics treat bacterial infections, not viruses, and every course raises the chance bacteria in your body will resist them. Finish the prescription even once you feel better, and never save pills or use someone else's.
- Author: Food Consumer
- Tags: Drug, Health News, #vivvo-import

Antibiotics

Antibiotics fight bacterial infections, not viruses. November 15-21 is Get Smart about Antibiotics Week. Learn more about antibiotics, including the rise in antibiotic resistance.

According to the [National Library of Medicine (NLM)](http://www.nlm.nih.gov/?ref=foodconsumer.org), [antibiotics](http://www.nlm.nih.gov/medlineplus/antibiotics.html?ref=foodconsumer.org) are powerful medicines that fight [bacterial infections](http://www.nlm.nih.gov/medlineplus/bacterialinfections.html?ref=foodconsumer.org). Used properly, antibiotics can save lives. They either kill bacteria or keep them from reproducing, allowing your body's natural defenses to take over and eliminate the infection.

Antibiotics do not fight infections caused by [viruses](http://www.nlm.nih.gov/medlineplus/viralinfections.html?ref=foodconsumer.org). If a virus is making you sick, taking antibiotics may do more harm than good. Each time you take antibiotics, you increase the chances that bacteria in your body will be able to resist them. Later, you could get or spread an infection that those antibiotics cannot cure. There are a few antiviral medicines available. [Vaccines](http://answers.usa.gov/system/web/view/selfservice/templates/USAgov/egredirect.jsp?p%5Ffaq%5Fid=9740&ref=foodconsumer.org) can help prevent you from getting many viral diseases.

When you take antibiotics, follow the directions carefully. It is important to finish your medicine even if you feel better. Do not save antibiotics for later or use someone else's prescription.

The [Centers for Disease Control and Prevention (CDC)](http://answers.usa.gov/system/web/view/selfservice/templates/USAgov/egredirect.jsp?p%5Ffaq%5Fid=12157&ref=foodconsumer.org) sponsor the [Get Smart Campaign](http://www.cdc.gov/getsmart/campaign-materials/about-campaign.html?ref=foodconsumer.org), which aims to reduce the rate of rise of antibiotic resistance. For more information, please visit CDC's ["Get Smart: Know When Antibiotics Work" web page](http://www.cdc.gov/drugresistance/community/?ref=foodconsumer.org).

November 15-21, 2010, is [Get Smart about Antibiotics Week](http://www.cdc.gov/getsmart/campaign-materials/week.html?ref=foodconsumer.org).

**Additional Resources:**

- [Find the Generic Equivalent to a Brand Name Prescription Drug](http://answers.usa.gov/system/web/view/selfservice/templates/USAgov/egredirect.jsp?p%5Ffaq%5Fid=10966&ref=foodconsumer.org)
- [Drug Labeling](http://answers.usa.gov/system/web/view/selfservice/templates/USAgov/egredirect.jsp?p%5Ffaq%5Fid=11311&ref=foodconsumer.org)
- [Drug-Resistant Staph Infections (MRSA)](http://answers.usa.gov/system/web/view/selfservice/templates/USAgov/egredirect.jsp?p%5Ffaq%5Fid=11216&ref=foodconsumer.org)
- [Assistance with Prescription Drug Costs](http://answers.usa.gov/system/web/view/selfservice/templates/USAgov/egredirect.jsp?p%5Ffaq%5Fid=11533&ref=foodconsumer.org)
- [Food and Drug Administration (FDA)](http://answers.usa.gov/system/web/view/selfservice/templates/USAgov/egredirect.jsp?p%5Ffaq%5Fid=12277&ref=foodconsumer.org)
- By usa.gov team