Let's take a minute to talk about your medication. 

This is levofloxacin. It is an antibiotic that treats infections caused by bacteria. It cannot treat infections caused by viruses, like the common cold.

You should take this medicine exactly as your doctor tells you to, at about the same time each day. You can take it with or without food. You should drink plenty of fluids when you are taking this medicine.

You should finish the full course of treatment even if you feel better. Otherwise, your infection could return and be hard to treat. 

Most people tolerate this medicine well. Common side effects include a headache, nausea, and either diarrhea or constipation. These effects are normal if they are mild and should go away. 

There are 6 things you can do to help use this medicine safely:
Wait until you know how this medicine affects you before you do activities that require you to be alert, like driving.
Tell your doctor if you feel lightheaded, dizzy or anxious.
Limit your time in the sun and wear protective clothing.
Avoid exercise. This may reduce the chance that you could damage your tendons, especially the ones in your ankles.
Take your dose early in the day to avoid problems sleeping at night.
And lastly, if you have diabetes, watch closely for blood sugar readings that are low or high.

As with any medicine, serious side effects could occur. It is very important for you to read the medication guide to know which symptoms to watch for and when to report them. This medicine is not recommended for people who have myasthenia gravis.

Levofloxacin can interact with other medicines. You should check with your doctor or pharmacist before taking other medicines. 

For best results with levofloxacin, let your doctor know if your condition does not improve.