SPL Set ID: ac8134d9-a726-4508-b8b9-a536ef17243d

Tobramycin sulfate, a water-soluble antibiotic of the aminoglycoside group, is derived from the actinomycete Streptomyces tenebrarius . Tobramycin injection, USP is a clear and colorless sterile aqueous solution for parenteral administration. Each mL contains tobramycin sulfate equivalent to 40 mg tobramycin; phenol added as a preservative, 5 mg; sodium bisulfite added as an antioxidant, 3.2 mg; and edetate disodium added as a stabilizer, 0.1 mg. Contains sulfuric acid and may contain sodium hydroxide for pH adjustment. pH (3.0 to 6.5). Tobramycin 80 mg/2 mL vial contains 1.568 mg (0.0682 mEq) of sodium. Tobramycin 1.2 g/30 mL vial contains 23.52 mg (1.0226 mEq) of sodium. Tobramycin sulfate is, O -3-amino-3-deoxy-α-D-glucopyranosyl-(1→4)- O -[2,6-diamino-2,3,6-trideoxy-α-D- ribo -hexopyranosyl-(1→6)]-2-deoxy-L-streptamine, sulfate (2:5)(salt) and has the chemical formula (C 18 H 37 N 5 O 9 ) 2 • 5H 2 SO 4 . The molecular weight is 1,425.45. The structural formula for tobramycin is as follows: structural formula