Metronidazole 500 mg

Metronidazole (Flagyl®, MetroCream®, MetroGel®, MetroGel-Vaginal®, MetroLotion®, Noritate®, Vandazole®) is a prescription antibiotic that comes in many different forms and strengths. Some products are taken by mouth, while others are used topically (applied to the skin).
 
There are four different types of oral metronidazole: 500 mg tablets, 250 mg tablets, 375 mg capsules, and long-acting 750 mg tablets. You can take regular, short-acting metronidazole tablets or capsules with food or on an empty stomach. However, the long-acting metronidazole tablets must be taken on an empty stomach, at least one hour before or two hours after a meal.
 
When treating an amebic liver abscess, the recommended dose is metronidazole 500 mg or 250 mg three times daily for 5 to 10 days.
 
For the medication to work properly, it must be taken as prescribed. Do not miss doses or stop taking this antibiotic earlier than your healthcare provider recommends, as bacterial resistance may develop.
 
(Click Metronidazole Prescription Drugs for more information about other metronidazole products, including brand-name and generic forms.)
 
Written by/reviewed by: Kristi Monson, PharmD; Arthur Schoenstadt, MD
Last reviewed by: Kristi Monson, PharmD;
Last updated/reviewed:
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