Levaquin Reactions

Levaquin® (levofloxacin) is a prescription medication approved for treating a wide variety of bacterial infections. Although most people respond well to this antibiotic, some people may develop negative reactions to Levaquin.
 
In clinical studies on Levaquin, a number of side effects were reported. Some of the most common included insomnia, nausea, and diarrhea. While not all Levaquin reactions require medical attention, you should contact your healthcare provider immediately if you experience:
 
  • 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
  • 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).
     
Severe allergic reactions to Levaquin are also possible. Seek immediate medical attention if you develop any signs of this, such as:
 
  • A rash or hives
  • Itching
  • Swelling of the lips or throat
  • Wheezing
  • Difficulty breathing.
 
(Click Levaquin Side Effects and Levaquin Warnings and Precautions to learn about other possible Levaquin reactions, what you should discuss with your healthcare provider before starting treatment, and information on who should not use it.)
 
Written by/reviewed by: Kristi Monson, PharmD; Arthur Schoenstadt, MD
Last reviewed by: Kristi Monson, PharmD;