Medical Dictionary


noun to·bra·my·cin \ˌtō-brə-ˈmīs-ən\

Medical Definition of tobramycin

  1. :  a colorless water-soluble antibiotic C18H37N5O9 isolated from a soil bacterium of the genus Streptomyces (S. tenebrarius) and effective especially against gram-negative bacteria When used in combination with loteprednol to treat inflammatory conditions of the eye, tobramycin is marketed under the trademark Zylet.

Seen and Heard

What made you want to look up tobramycin? Please tell us where you read or heard it (including the quote, if possible).