Metronidazole is an antibiotic used to treat a variety of infections. It is available in 500mg tablets and can be purchased online from various pharmacies. Metronidazole is a very effective medication for treating bacterial and protozoal infections, such as Bacterial Vaginosis, Trichomoniasis, Giardiasis, and others. When buying Metronidazole online, it is important to ensure that you are purchasing the correct dosage and from a reputable pharmacy. Additionally, it is important to follow all instructions provided by your doctor when taking this medication.