If you have certain bacterial infections, you may benefit from Flagyl® (metronidazole). This prescription medication is used to treat a wide variety of bacterial infections, including some sexually transmitted infections and infections caused by parasites and anaerobic bacteria, which do not require oxygen to survive.
When using the oral form of Flagyl, the medicine comes as regular tablets, long-acting tablets, and capsules. It is taken one to four times daily, depending on the particular use. It is important to take your doses at the same time(s) each day. Taking them too far apart may make the drug less effective, and taking them too close together may increase the risk of side effects.
Although most people tolerate this medication well, it is not suitable for everyone. Possible side effects include nausea, headaches, and vaginal infections.
(For a closer look at both the injectable and oral forms, click Flagyl. This article also discusses general dosing guidelines, safety precautions, and tips on effectively using this antibiotic.)
Written by/reviewed by: Kristi Monson, PharmD;Arthur Schoenstadt, MD
Last reviewed by: KristiMonson, PharmD;
List of references (click here):
Flagyl [package insert]. New York, NY: Pfizer, Inc.;2006 August.
Flagyl ER [package insert]. New York, NY: Pfizer, Inc.;2006 August.
Flagyl 375 [package insert]. New York, NY: Pfizer, Inc.;2006 August.
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 8, 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 8, 2008.
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