Dosage form: ophthalmic solution
Drug class:Ophthalmic anti-infectives
Medically reviewed by Drugs.com. Last updated on Sep 1, 2021.
On This Page
Tobramycin Ophthalmic Solution Description
Tobramycin Ophthalmic Solution USP, 0.3% is a sterile topical ophthalmic antibiotic formulation prepared specifically for topical therapy of external ophthalmic infections.
Each mL of Tobramycin Ophthalmic Solution USP, 0.3% contains:Active: tobramycin 0.3 % (3 mg). Preservative: benzalkonium chloride 0.01 % (0.1 mg). Inactives: boric acid, sodium sulfate decahydrate, sodium chloride, tyloxapol, sodium hydroxide and/or sulfuric acid (to adjust pH) and water for injection. Tobramycin Ophthalmic Solution USP, 0.3% has a pH range between 7.0 and 8.0 and an osmolality of 260-320 mOsm/kg.
Tobramycin is a water-soluble aminoglycoside antibiotic active against a wide variety of gram-negative and gram-positive ophthalmic pathogens.
The chemical structure of tobramycin is:
Molecular Weight = 467.52
Molecular Formula: C 18H 37N 5O 9
Chemical name:
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.
