Ilotycin® (Erythromycin Ophthalmic Ointment, USP) belongs to the macrolide group of antibiotics. It is basic and readily forms a salt when combined with an acid. The base, as crystals or powder, is slightly soluble in water, moderately soluble in ether, and readily soluble in alcohol or chloroform. Erythromycin is an antibiotic produced from a strain of Streptomyces erythraeus . The special sterile ophthalmic ointment base flows freely over the conjunctiva.

Chemical Name: (3R*, 4S*, 5S*, 6R*, 7R*, 9R*, 11R*, 12R*, 13S*, 14R*)-4-[(2,6-Dideoxy-3-C-methyl-3- O -methyl-(alpha)-L- ribo -hexopyranosyl)oxy]-14-ethyl-7, 12, 13-trihydroxy-3, 5, 7, 9, 11, 13-hexamethyl-6-[[3, 4, 6-trideoxy-3-(dimethylamino)-(beta)-D- xylo -hexopyranosyl]oxy]oxacyclotetradecane-2,10-dione.

Each Gram Contains: ACTIVE: Erythromycin, USP, 5 mg (0.5%); INACTIVES: White Petrolatum, Mineral Oil.

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