You should know about metronidazole: "Metronidazole is one of the rare examples of a drug developed against a parasite which has since gained broad use as an antibacterial agent. Serious infections caused by susceptible anaerobic bacteria. Metronidazole comes as a tablet to take by mouth. It at a cheaper price. Drinking alcoholic beverages while taking this drug. Metronidazole should not be used in the first trimester of pregnancy. Metronidazole is one of the rare examples of a drug developed against a parasite which has since gained broad use as an antibacterial agent. Flagyl, generically known as Metronidazole, is prescribed for the treatment of many protozoal and bacterial infections."