Maymox 500 mg Capsule is a versatile antibiotic medicine which can be used to treat many different infections caused by bacteria. These include infections of the blood, brain, lungs, bones, joints, urinary tract, stomach and intestines. It can also be used to treat gum ulcers and other dental infections (abscesses), leg ulcers and pressure sores. It works by stopping the growth of the bacteria causing the infection.