an *antibiotic used to treat severe infections caused by Gram-negative bacteria. Formulated with other drugs, it is administered for ear, eye, and skin infections.
A group of antibiotics derived from various species of Bacillus polymyxa. One variety, colistin, is used to sterilise the bowels before surgery as it is not absorbed when given by mouth. The drugs are sometimes used in topical applications for infections of the skin, eye and ear.... polymyxin
A group of antibiotic drugs derived from the bacterium BACILLUS POLYMYXA. Polymyxins, which include colistin, are commonly given to treat eye, ear, and skin infections.... polymyxins