Metronidazole is a type of antibiotic medication used to treat bacterial and parasitic infections. Other names for the same drug include Flagyl, MetroGel, Noritate and Vandazole. These are all brand name versions of metronidazole that may be prescribed for different uses. Metrogel is typically used for treating rosacea, while Noritate and Vandazole are primarily prescribed for vaginal infections. Besides these, there are other similar drugs like Tindamax, Secnidazole, and Tinidazole which are also used to treat parasitic infections. Regardless of its name, metronidazole helps to combat infections by inhibiting the growth of harmful bacteria.