Tobramycin is an antibiotic medication that belongs to the aminoglycoside class of drugs. It is commonly used to treat bacterial infections of the eye, ear, and urinary tract. Synonyms for tobramycin include Tobracin, Tobrex, Nebcin, and Arikayce. Tobracin belongs to the same aminoglycoside class as tobramycin, and is used to treat bacterial infections of the skin, respiratory tract, and urinary tract. Tobrex is another similar medication that is prescribed for bacterial conjunctivitis, corneal ulcers, and other ocular infections. Nebcin and Arikayce are also aminoglycosides like tobramycin, and are used for treating serious bacterial infections such as pneumonia, sepsis, and endocarditis.