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 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 to 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 = 467.51
Molecular Formula: C18H37N5O9
Chemical name:
0-13-amino-3-dexoy-α-D-gluco-pyranosyl-(1→4)}-0-[2,6-diamino-2,3,6-trideoxyl-α-D-ribohexo-pyranosol-(1→6) ]-2-deoxystreptamine.