Levofloxacin Side Effects

You should notify your healthcare provider immediately if you experience any joint or muscle problems, watery or bloody diarrhea, or fainting while taking levofloxacin. Side effects of the medication are usually mild, however, and either do not require medical attention or can be treated easily in most cases. Some of these more common side effects of levofloxacin include nausea, diarrhea, and headache.

An Introduction to Levofloxacin Side Effects

As with any medicine, side effects are possible with levofloxacin (Levaquin®). However, not everyone who takes the medication will have problems. In fact, most people tolerate it quite well. If side effects do occur, in most cases, they are minor and either require no treatment or can easily be treated by you or your healthcare provider.
(This article covers many, but not all, of the possible side effects with levofloxacin. Your healthcare provider can discuss a more complete list of levofloxacin side effects with you.)

Levofloxacin Side Effects to Report

There are a number of possible side effects with levofloxacin that you should report immediately to your healthcare provider, including, but not limited to:
  • Pain, swelling, bruising, or rupture of a tendon
  • Signs of liver damage, such as yellow eyes or skin (jaundice), upper right abdominal pain, light-colored stools, or dark urine
  • Low blood sugar (hypoglycemia) or high blood sugar (hyperglycemia) in people with diabetes
  • Seizures
  • Hallucinations, paranoia, anxiety, depression, suicidal thoughts, or any other unusual changes in thoughts or behavior
  • Watery or bloody diarrhea
  • Fainting
  • Heart palpitations or an irregular heart rhythm (arrhythmia)
  • Any unusual sensations, such as burning, numb, tingly, or pricking sensations
  • Any joint or muscle problems
  • Signs of an allergic reaction, such as:


    • An unexplained rash
    • Hives
    • Itching
    • Unexplained swelling (especially of the lips, mouth, or throat)
    • Wheezing or other breathing problems



The Dirty, Messy Part of BPH

Levofloxacin Medication Information

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