Do not take this medicine with any of the following medications:

-cisapride
-dronedarone
-pimozide
-thioridazine
This medicine may also interact with the following medications:

-birth control pills
-certain medicines for diabetes, like glipizide, glyburide, or insulin
-certain medicines that treat or prevent blood clots like warfarin
-NSAIDS, medicines for pain and inflammation, like ibuprofen or naproxen
-other medicines that prolong the QT interval (cause an abnormal heart rhythm) like dofetilide, ziprasidone
-steroid medicines like prednisone or cortisone
-theophylline

They need to know if you have any of these conditions:

-bone problems
-diabetes
-heart disease
-high blood pressure
-history of irregular heartbeat
-history of low levels of potassium in the blood
-joint problems
-kidney disease
-liver disease
-mental illness
-myasthenia gravis
-seizures
-tendon problems
-tingling of the fingers or toes, or other nerve disorder
-an unusual or allergic reaction to levofloxacin, other quinolone antibiotics, foods, dyes, or preservatives
-pregnant or trying to get pregnant
-breast-feeding

Tell your doctor or healthcare professional if your symptoms do not start to get better or if they get worse.
Do not treat diarrhea with over the counter products. Contact your doctor if you have diarrhea that lasts more than 2 days or if it is severe and watery.
Check with your doctor or health care professional if you get an attack of severe diarrhea, nausea and vomiting, or if you sweat a lot. The loss of too much body fluid can make it dangerous for you to take this medicine.
This medicine may increase blood sugar. Ask your healthcare provider if changes in diet or medicines are needed if you have diabetes.
You may get drowsy or dizzy. Do not drive, use machinery, or do anything that needs mental alertness until you know how this medicine affects you. Do not sit or stand up quickly, especially if you are an older patient. This reduces the risk of dizzy or fainting spells.
This medicine can make you more sensitive to the sun. Keep out of the sun. If you cannot avoid being in the sun, wear protective clothing and use sunscreen. Do not use sun lamps or tanning beds/booths.

Keep out of the reach of children.

If you are using this medicine at home, you will be instructed on how to store this medicine. Throw away any unused medicine after the expiration date on the label.