Flagyl ER (Metronidazole Extended Release Tablets) Drug Information: Description, User Reviews, Drug Side Effects, Interactions

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May 27, 2012

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Flagyl ER

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Flagyl® ER
(metronidazole) Extended Release Tablets

To reduce the development of drug-resistant bacteria and maintain the effectiveness of Flagyl ER (metronidazole extended release tablets) and other antibacterial drugs, Flagyl ER (metronidazole extended release tablets) should be used only to treat or prevent infections that are proven or strongly suspected to be caused by bacteria.

WARNING

Metronidazole has been shown to be carcinogenic in mice and rats. (See PRECAUTIONS.)Unnecessary use of the drug should be avoided. Its use should be reserved for conditions described in the INDICATIONS AND USAGE section.

DRUG DESCRIPTION

Metronidazole is an oral synthetic antiprotozoal and antibacterial agent, 2-methyl-5nitroimidazole-1-ethanol, which has the following structural formula:

Flagyl® ER
(metronidazole) Structural Formula Illustration

Flagyl ER 750 mg tablets contain 750 mg of metronidazole USP. Inactive ingredients include hypromellose, lactose, magnesium stearate, polyethylene glycol, poly (meth) acrylic acid ester copolymers, polysorbate 80, silicon dioxide, simethicone emulsion, talc, titanium dioxide, FD&C Blue No. 2 Aluminum Lake.

What are the precautions when taking metronidazole extended release tablets (Flagyl ER)?

Before taking metronidazole, tell your doctor or pharmacist if you are allergic to it; or to other nitroimidazoles such as tinidazole; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.

Before using this medication, tell your doctor or pharmacist your medical history, especially of: liver problems, nervous system disorders (e.g., seizures), blood disorders, Crohn's disease.

Avoid alcoholic beverages while taking this medication and for at least 3 days after finishing this medicine because severe stomach upset, nausea, vomiting, headache and flushing may occur.

This drug may make you dizzy. Do not drive, use machinery, or do any activity...

Read All Potential Precautions of Flagyl ER »

Last reviewed on RxList: 9/15/2010
This monograph has been modified to include the generic and brand name in many instances.