Levaquin® (levofloxacin) is a prescription medication used to treat certain types of bacterial infections. It is also approved to prevent an infection following an exposure to anthrax, and to prevent and treat plague. The drug comes in several forms, including pills (tablets), oral solution (liquid), and injections. Levaquin pills are available in the following strengths:
Levaquin 250 mg
Levaquin 500 mg
Levaquin 750 mg.
As a type of fluoroquinolone, Levaquin works by interfering with two important bacterial enzymes: topoisomerase IV and DNA gyrase. These enzymes are necessary for bacteria to be able to copy and repair DNA (important steps required in order for bacteria to multiply).
Even though most people tolerate Levaquin pills well, the medication is not suitable for everyone. Before beginning treatment, talk to your healthcare provider about any other medical conditions you have and any other medications you are taking, including vitamins, supplements, and nonprescription medications.
(Click Levaquin for a more in-depth look at how the pill form of Levaquin works, potential side effects, general dosing guidelines, and what to tell your healthcare provider before using this medication.)
Written by/reviewed by: Kristi Monson, PharmD;Arthur Schoenstadt, MD
Food and Drug Administration, Center for Drug Evaluation and Research. Electronic orange book: approved drug products with therapeutic equivalence evaluations. FDA Web site. Available at: http://www.fda.gov/cder/ob/. Accessed August 1, 2008.
Briggs GG, Freeman RK, Yaffe SJ. Drugs in Pregnancy and Lactation. 7th ed. Philadelphia (PA): Lippincott Williams & Wilkins;2005.
National Library of Medicine (US). Drugs and Lactation Database (LactMED). NLM Web site. Available at: http://toxnet.nlm.nih.gov/cgi-bin/sis/htmlgen?LACT. Accessed August 1, 2008.
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