Metronidazole tablets UK are prescription antibiotics commonly used to treat bacterial and parasitic infections, including dental infections, bacterial vaginosis, pelvic infections, skin infections, and certain gastrointestinal conditions. They work by stopping the growth of infection-causing microorganisms, helping to relieve symptoms and support recovery. In the UK, metronidazole tablets should only be taken under the guidance of a qualified healthcare professional, with the prescribed dosage completed even if symptoms improve early.