Carbenicillin is a commonly prescribed antibiotic medication used to treat a wide range of bacterial infections. However, it is always helpful to know some synonyms for Carbenicillin that you may encounter while searching for the medication. Some of the popularly known synonyms include Geocillin, Pyopen, Ancarben, Carindacillin, Osmopen, and others. All of these drugs contain carboxypenicillin as the main ingredient, which works by preventing bacteria from forming protective cell walls, making it easier for the immune system to fight off the infection. When you are prescribed Carbenicillin medication, it is important to use it as directed, avoid taking overdoses or skipping doses, and discuss any potential adverse effects with your healthcare provider.