Call your doctor at once if you have a serious side effect such as:

• diarrhea that is watery or bloody;
• seizure (convulsions);
• confusion, hallucinations, unusual thoughts or behavior;
• dizziness, fainting, fast or pounding heartbeat;
• sudden pain or swelling near your joints (especially in your arm or ankle);
• easy bruising or bleeding;
• urinating less than usual or not at all;
• numbness, burning, pain, or tingly feeling in your hands or feet;
• pale or yellowed skin, dark colored urine, fever, weakness;
• fever, sore throat, and headache with a severe blistering, peeling, and red skin rash; or
• jaundice (yellowing of the skin or eyes).

Less serious Levaquin side effects may include:

• nausea, vomiting, stomach pain, constipation;
• feeling restless or anxious;
• headache, dizziness;
• muscle pain;
• sleep problems (insomnia), or nightmares;
• vaginal itching or discharge; or
• mild skin itching.

This is not a complete list of side effects and others may occur. Tell your doctor about any unusual or bothersome side effect. Contact a lawyer if you have serious side effects.