Generic Name: erythromycin
Dosage Form: ophthalmic ointment
Medically reviewed on October 2, 2017
ilotycin® Erythromycin Ophthalmic Ointment 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 ((3R*,4S*,5S*,6R*,7R*,9R*,11R*,12R*,13S*,14R*)-4-[(2,6-dideoxy-3-C-methyl-3- 0-methyl-α-L-ribo-hexopyranosyl)oxy]-14-ethyl-7,12,13-trihydroxy-3,5,7,9,11,13-hexamethyl-6-[[3, 4,6-trideoxy-3-(dimethylamino)-ß-D-xylo-hexopyranosyl]oxy]oxacyclotetradecane-2,10-dione) is an antibiotic produced from a strain of Streptomyces erythraeus. It has the following structural formula:
Molecular Formula: C37H67NO13
Molecular Weight: 733.94
Each gram contains Erythromycin USP 5 mg in a sterile ophthalmic base of mineral oil and white petrolatum.
Erythromycin inhibits protein synthesis without affecting nucleic acid synthesis. Erythromycin is usually active against the following organisms in vitro and in clinical infections:
- Streptococcus pyogenes(group A ß-hemolytic)
- Alpha-hemolytic streptococci (viridans group)
- Staphylococcus aureus, including penicillinase-producing strains (methicillin-resistant staphylococci are uniformly resistant to erythromycin)
- Streptococcus pneumoniae
- Mycoplasma pneumoniae(Eaton Agent, PPLO)
- Haemophilusinfluenzae(not all strains of this organism are susceptible at the erythromycin concentrations ordinarily achieved)
- Neisseria gonorrhoeae
- Chlamydia trachomatis
INDICATIONS AND USAGE:
For the treatment of superficial ocular infections involving the conjunctiva and/or cornea caused by organisms susceptible to erythromycin.
For prophylaxis of ophthalmia neonatorum due to N. gonorrhoeaeor C. trachomatis. The effectiveness of erythromycin in the prevention of ophthalmia caused by penicillinase-producing N. gonorrhoeaeis not established.
For infants born to mothers with clinically apparent gonorrhea, intravenous or intramuscular injections of aqueous crystalline penicillin G should be given; a single dose of 50,000 units for term infants or 20,000 units for infants of low birth weight. Topical prophylaxis alone is inadequate for these infants.
This drug is contraindicated in patients with a history of hypersensitivity to erythromycin.
The use of antimicrobial agents may be associated with the overgrowth of nonsusceptible organisms including fungi; in such a case, antibiotic administration should be stopped and appropriate measures taken.
Information for Patients:
Avoid contaminating the applicator tip with material from the eye, fingers, or other source.
Carcinogenesis, Mutagenesis, Impairment of Fertility:
Two year oral studies conducted in rats with erythromycin did not provide evidence of tumorigenicity. Mutagenicity studies have not been conducted. No evidence of impaired fertility that appeared related to erythromycin was reported in animal studies.
Pregnancy:Teratogenic Effects -
Pregnancy Category B.
Reproduction studies have been performed in rats, mice, and rabbits using erythromycin and its various salts and esters, at doses that were several multiples of the usual human dose. No evidence of harm to the fetus that appeared related to erythromycin was reported in these studies. There are, however, no adequate and well-controlled studies in pregnant women. Because animal reproductive studies are not always predictive of human response, the erythromycins should be used during pregnancy only if clearly needed.
Caution should be exercised when erythromycin is administered to a nursing woman.
See INDICATIONS AND USAGE and DOSAGE AND ADMINISTRATION.
The most frequently reported adverse reactions are minor ocular irritations, redness, and hypersensitivity reactions.
To report SUSPECTED ADVERSE REACTIONS, contact Perrigo at 1-866-634-9120 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.
DOSAGE AND ADMINISTRATION:
In the treatment of superficial ocular infections, a ribbon approximately 1 cm in length of ilotycin® Ophthalmic Ointment should be applied directly to the infected structure up to 6 times daily, depending on the severity of the infection.
For prophylaxis of neonatal gonococcal or chlamydial conjunctivitis, a ribbon of ointment approximately 1 cm in length should be instilled into each lower conjunctival sac. The ointment should not be flushed from the eye following instillation. A new tube should be used for each infant.
Sterile ilotycin® Ophthalmic Ointment USP, 5 mg/g as follows:
1 g tamper-evident tubes
Store at 20° to 25°C (68° to 77°F) [see USP Controlled Room Temperature].
Avoid excessive heat.
Protect from freezing.
Minneapolis, MN 55427
1D500 RC J1 Rev 08-13 A
PACKAGE/LABEL PRINCIPAL DISPLAY PANEL
Ophthalmic Ointment USP 0.5% (5 mg/g)
Erythromycin USP equivalent to 5 mg erythromycin per gram.
NET WT 1 g
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