Skip navigation
MedlinePlus Trusted Health Information for You U.S. National Library of MedicineNational Institutes of Health
Contact Us FAQs Site Map About MedlinePlus
español Home Health Topics Drugs & Supplements Medical Encyclopedia Dictionary News Directories Other Resources

Other drug names:  A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z  0-9

Ciprofloxacin

(sip roe flox' a sin)

Printer-friendly versionE-mail this page to a friend

Contents of this page:

Why is this medication prescribed?   Return to top

Ciprofloxacin is an antibiotic used to treat or prevent certain infections caused by bacteria. Ciprofloxacin is also used to treat or prevent anthrax in people who may have been exposed to anthrax germs in the air. Ciprofloxacin extended-release (long-acting) tablets are used only to treat certain types of urinary tract infections. Ciprofloxacin is in a class of antibiotics called fluoroquinolones. It works by killing bacteria.

Antibiotics will not work for colds, flu, or other viral infections.

How should this medicine be used?   Return to top

Ciprofloxacin comes as a tablet, a suspension (liquid) and an extended-release tablet to take by mouth. The tablet and suspension are usually taken twice a day in the morning and evening with or without food. The extended-release tablets are usually taken once a day.Cipro XR brand extended-release tablets may be taken with or without food. Proquin XR brand extended-release tablets should be taken with a main meal of the day, preferably the evening meal. Take ciprofloxacin at around the same time(s) every day. The length of your treatment depends on the type of infection you have. Your doctor will tell you how long to take ciprofloxacin. Follow the directions on your prescription label carefully, and ask your doctor or pharmacist to explain any part you do not understand. Take ciprofloxacin exactly as directed. Do not take more or less of it or take it more often than prescribed by your doctor.

One brand or type of ciprofloxacin cannot be substituted for another. Be sure that you receive only the brand of ciprofloxacin that was prescribed by your doctor. Ask your pharmacist if you have any questions about the type of ciprofloxacin you were given.

Swallow the extended-release tablets whole; do not split, crush, or chew them. If you cannot swallow tablets whole, tell your doctor.

If you are taking the liquid, shake the bottle very well for 15 seconds before each use to mix the medication evenly. Swallow the correct dose without chewing the granules in the liquid. Close the liquid ciprofloxacin bottle completely after each use. Do not give the liquid to a patient through a feeding tube.

You should begin feeling better during the first few days of treatment with ciprofloxacin. If your symptoms do not improve, or if they get worse, call your doctor. Fever and back pain may be symptoms of a worsening urinary tract infection. If you are being treated for this type of infection, call your doctor if you develop these symptoms during or after your treatment

Take ciprofloxacin until you finish the prescription, even if you feel better. If you stop taking ciprofloxacin too soon or if you skip doses, your infection may not be completely treated and the bacteria may become resistant to antibiotics.

Ask your pharmacist or doctor for a copy of the manufacturer's information for the patient.

Other uses for this medicine   Return to top

In the event of biological warfare, ciprofloxacin may be used to treat and prevent dangerous illnesses that are deliberately spread such as plague, tularemia, and anthrax of the skin or mouth. Talk to your doctor about the possible risks of using this medication for your condition.

This medication may be prescribed for other uses; ask your doctor or pharmacist for more information.

What special precautions should I follow?   Return to top

Before taking ciprofloxacin,

What special dietary instructions should I follow?   Return to top

Do not take ciprofloxacin with dairy products (like milk, ice cream, cheese, or yogurt) or calcium-added juices alone. You may take ciprofloxacin with a meal that includes these foods.

Do not drink or eat a lot of caffeine-containing products such as coffee, tea, energy drinks, cola, or chocolate. Ciprofloxacin may increase nervousness, sleeplessness, heart pounding, and anxiety caused by caffeine.

Make sure you drink plenty of water or other fluids every day while you are taking ciprofloxacin.

What should I do if I forget a dose?   Return to top

If you miss a dose of ciprofloxacin tablets or suspension, take the missed dose as soon as you remember it. However, if it is almost time for the next dose, skip the missed dose and continue your regular dosing schedule. Do not take a double dose to make up for a missed one.

If you miss a dose of the extended-release tablets and remember that same day, take the missed dose as soon as you remember it. However, if you do not remember until the next day, skip the missed dose and continue your regular dosing schedule. Do not take more than one ciprofloxacin extended-release tablet in one day.

What side effects can this medication cause?   Return to top

Ciprofloxacin may cause side effects. Tell your doctor if any of these symptoms are severe or do not go away:

Some side effects can be serious. If you experience any of these symptoms, stop taking ciprofloxacin, and call your doctor immediately:

Ciprofloxacin may cause joint damage in children. Ciprofloxacin should not normally be given to children younger than 18 years old unless they have certain serious infections that cannot be treated with other antibiotics or they have been exposed to anthrax in the air. If your doctor prescribes ciprofloxacin for your child, be sure to tell the doctor if your child has a history of joint-related problems. Call your doctor if your child develops joint problems while taking ciprofloxacin or after treatment with ciprofloxacin. Talk to your child's doctor about the risks of giving ciprofloxacin to your child.

Ciprofloxacin may cause other side effects. Call your doctor if you have any unusual problems while taking this medication.

What storage conditions are needed for this medicine?   Return to top

Keep this medication in the container it came in, tightly closed, and out of reach of children. Store it at room temperature and away from excess heat and moisture (not in the bathroom). Store the suspension in the refrigerator or at room temperature, closed tightly, for up to 14 days. Do not freeze ciprofloxacin suspension. Throw away any liquid that is left over after 14 days and any medication that is outdated or no longer needed. Talk to your pharmacist about the proper disposal of your medication.

In case of emergency/overdose   Return to top

In case of overdose, call your local poison control center at 1-800-222-1222. If the victim has collapsed or is not breathing, call local emergency services at 911.

What other information should I know?   Return to top

Keep all appointments with your doctor and the laboratory. Your doctor may order certain lab tests to check your body's response to ciprofloxacin.

Do not let anyone else take your medication. Your prescription is probably not refillable. If you still have symptoms of infection after you finish the ciprofloxacin, call your doctor.

Keep a list of all the medications you are taking and show it to your doctor and pharmacist during each visit.

It is important for you to keep a written list of all of the prescription and nonprescription (over-the-counter) medicines you are taking, as well as any products such as vitamins, minerals, or other dietary supplements. You should bring this list with you each time you visit a doctor or if you are admitted to a hospital. It is also important information to carry with you in case of emergencies.

Brand names   Return to top

  • Cipro®
  • Cipro® XR , Proquin®XR

Last Revised - 01/01/2007
Last Reviewed - 08/01/2007


ASHP Logo
American Society of Health-System Pharmacists, Inc. Disclaimer

The MedMaster™ Patient Drug Information database provides information copyrighted by the American Society of Health-System Pharmacists, Inc., Bethesda, Maryland Copyright© 2008. All Rights Reserved.