Levofloxacin Oral (patient information)

# Why this medication is prescribed
Levofloxacin is used treat infections such as pneumonia; chronic bronchitis; and sinus, urinary tract, kidney, and skin infections. Levofloxacin is in a class of antibiotics called fluoroquinolones. It works by eliminating bacteria that cause infections. Antibiotics will not work for colds, flu, or other viral infections.

# How this medication should be used
Levofloxacin comes as a tablet to take by mouth. It is usually taken once daily for 7-14 days. Treatment for some infections may take 6 weeks or longer. Follow the directions on your prescription label carefully, and ask your doctor or pharmacist to explain any part you do not understand. Take levofloxacin exactly as directed. Do not take more or less of it or take it more often than prescribed by your doctor.
Tablets should be taken with a full glass of water.
Continue to take levofloxacin even if you feel well. Do not stop taking levofloxacin without talking to your doctor.

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

# Special precautions
Before taking levofloxacin:
- tell your doctor and pharmacist if you are allergic to levofloxacin, ciprofloxacin (Cipro), enoxacin (Penetrex), lomefloxacin (Maxaquin), norfloxacin (Noroxin), ofloxacin (Floxin), sparfloxacin (Zagam), cinoxacin (Cinobac), nalidixic acid (NegGram), or any other drugs.
- tell your doctor and pharmacist what prescription and nonprescription medications, vitamins, nutritional supplements, and herbal products you are taking or plan to take. Be sure to mention any of the following: other antibiotics; anticoagulants ('blood thinners') such as warfarin (Coumadin); cancer chemotherapy agents; cimetidine (Tagamet); cisapride (Propulsid); cyclosporine (Neoral, Sandimmune); medications for irregular heartbeats such as amiodarone (Cordarone), disopyramide (Norpace), dofetilide (Tikosyn), procainamide (Procanbid, Pronestyl), quinidine (Quinidex), and sotalol (Betapace, Betapace AF); oral steroids such as dexamethasone (Decadron, Dexone), methylprednisolone (Medrol), and prednisone (Deltasone); phenytoin (Dilantin); pimozide (Orap); probenecid (Benemid); sucralfate (Carafate); theophylline (Theo-Dur); and thioridazine (Mellaril). Your doctor may need to change the doses of your medications or monitor you carefully for side effects.
- do not take with antacids (Mylanta, Maalox), didanosine (Videx) chewable/buffered tablets or solution, iron or zinc supplements, sucralfate (Carafate), or vitamins that contain iron or zinc. Take these medications 2 hours before or after levofloxacin.
- tell your doctor if you have or have ever had kidney or liver disease, convulsions, colitis, stomach problems, vision problems, heart disease, or history of stroke.
- tell your doctor if you are pregnant, plan to become pregnant, or are breast-feeding. If you become pregnant while taking levofloxacin, call your doctor.
- if you are having surgery, including dental surgery, tell the doctor or dentist that you are taking levofloxacin.
- you should know that this medication may cause dizziness, lightheadedness, and tiredness. Do not drive a car or work on dangerous machines until you know how levofloxacin will affect you.
- plan to avoid unnecessary or prolonged exposure to sunlight and to wear protective clothing, sunglasses, and sunscreen. Levofloxacin may make your skin sensitive to sunlight.
- Keep in mind that it causes increased or decreased blood sugar in patients taking antidiabetes medications or insulin. Careful monitoring of blood glucose is advised. If you experience a significant drop in blood glucose, stop taking levofloxacin and call your doctor.

# Special dietary instructions
Levofloxacin can be taken with or without food. If an upset stomach occurs, take with food. Drink at least eight full glasses of water or other liquid every day.

# What to do if you forget a dose
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.

# Side effects

## Minor side effects
Levofloxacin may cause side effects. Tell your doctor if any of these symptoms are severe or do not go away:
- upset stomach
- diarrhea
- vomiting
- stomach pain
- headache
- restlessness

## Severe side effects
Some side effects can be serious. If you experience any of these symptoms, call your doctor immediately:
- skin rash
- itching
- hives
- difficulty breathing or swallowing
- swelling of the face or throat
- yellowing of the skin or eyes
- dark urine
- pale or dark stools
- blood in urine
- pain, inflammation, or rupture of a tendon
- rapid, irregular, or pounding heartbeats
Levofloxacin may cause other side effects. Call your doctor if you have any unusual problems while taking this medication.

# Storage conditions needed for this medication
Keep this medication in the container it came in, tightly closed, and out of reach of children. Store the tablets at room temperature and away from excess heat and moisture (not in the bathroom). Keep away from light. Throw away 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
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.

# Other information
Keep all appointments with your doctor and the laboratory. Your doctor will order certain lab tests to check your response to levofloxacin.
Before having any laboratory test, tell your doctor and the laboratory personnel that you are taking levofloxacin.
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 levofloxacin, call your doctor.

# Brand names
- Levaquin