Erythromycin (ophthalmic)

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Erythromycin (ophthalmic)
Adult Indications & Dosage
Pediatric Indications & Dosage
Contraindications
Warnings & Precautions
Adverse Reactions
Drug Interactions
Use in Specific Populations
Administration & Monitoring
Overdosage
Pharmacology
Clinical Studies
How Supplied
Images
Patient Counseling Information
Precautions with Alcohol
Brand Names
Look-Alike Names

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Adeel Jamil, M.D. [2]

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Overview

Erythromycin (ophthalmic) is a macrolide and antibiotic that is FDA approved 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. gonorrhoeae or C. trachomatis. Common adverse reactions include ocular irritations, redness, and hypersensitivity reactions.

Adult Indications and Dosage

FDA-Labeled Indications and Dosage (Adult)

  • 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. gonorrhoeae or C. trachomatis.
  • The effectiveness of erythromycin in the prevention of ophthalmia caused by penicillinase-producing N.gonorrhoeae is 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.

Dosing Information

  • In the treatment of superficial ocular infections, a ribbon approximately 1 cm in length of Erythromycin Opthalmic 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.

Off-Label Use and Dosage (Adult)

Guideline-Supported Use

There is limited information regarding Off-Label Guideline-Supported Use of Erythromycin (ophthalmic) in adult patients.

Non–Guideline-Supported Use

There is limited information regarding Off-Label Non–Guideline-Supported Use of Erythromycin (ophthalmic) in adult patients.

Pediatric Indications and Dosage

FDA-Labeled Indications and Dosage (Pediatric)

There is limited information regarding Erythromycin (ophthalmic) FDA-Labeled Indications and Dosage (Pediatric) in the drug label.

Off-Label Use and Dosage (Pediatric)

Guideline-Supported Use

There is limited information regarding Off-Label Guideline-Supported Use of Erythromycin (ophthalmic) in pediatric patients.

Non–Guideline-Supported Use

There is limited information regarding Off-Label Non–Guideline-Supported Use of Erythromycin (ophthalmic) in pediatric patients.

Contraindications

  • This drug is contraindicated in patients with a history of hypersensitivity to erythromycin.

Warnings

PRECAUTIONS:=

General:
  • 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.

Adverse Reactions

Clinical Trials Experience

  • The most frequently reported adverse reactions are minor ocular irritations, redness, and hypersensitivity reactions.

Postmarketing Experience

There is limited information regarding Erythromycin (ophthalmic) Postmarketing Experience in the drug label.

Drug Interactions

There is limited information regarding Erythromycin (ophthalmic) Drug Interactions in the drug label.

Use in Specific Populations

Pregnancy

Pregnancy Category (FDA): 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.


Pregnancy Category (AUS): There is no Australian Drug Evaluation Committee (ADEC) guidance on usage of Erythromycin (ophthalmic) in women who are pregnant.

Labor and Delivery

There is no FDA guidance on use of Erythromycin (ophthalmic) during labor and delivery.

Nursing Mothers

  • Caution should be exercised when erythromycin is administered to a nursing woman.

Pediatric Use

There is no FDA guidance on the use of Erythromycin (ophthalmic) in pediatric settings.

Geriatic Use

  • No overall differences in safety or effectiveness have been observed between elderly and younger patients.

Gender

There is no FDA guidance on the use of Erythromycin (ophthalmic) with respect to specific gender populations.

Race

There is no FDA guidance on the use of Erythromycin (ophthalmic) with respect to specific racial populations.

Renal Impairment

There is no FDA guidance on the use of Erythromycin (ophthalmic) in patients with renal impairment.

Hepatic Impairment

There is no FDA guidance on the use of Erythromycin (ophthalmic) in patients with hepatic impairment.

Females of Reproductive Potential and Males

There is no FDA guidance on the use of Erythromycin (ophthalmic) in women of reproductive potentials and males.

Immunocompromised Patients

There is no FDA guidance one the use of Erythromycin (ophthalmic) in patients who are immunocompromised.

Administration and Monitoring

Administration

There is limited information regarding Erythromycin (ophthalmic) Administration in the drug label.

Monitoring

There is limited information regarding Erythromycin (ophthalmic) Monitoring in the drug label.

IV Compatibility

There is limited information regarding the compatibility of Erythromycin (ophthalmic) and IV administrations.

Overdosage

There is limited information regarding Erythromycin (ophthalmic) overdosage. If you suspect drug poisoning or overdose, please contact the National Poison Help hotline (1-800-222-1222) immediately.

Pharmacology

Template:Px
Template:Px
Erythromycin (ophthalmic)
Systematic (IUPAC) name
(3R,4S,5S,6R,7R,9R,11R,12R,13S,14R)-6-
{[(2S,3R,4S,6R)-4-(dimethylamino)-3-hydroxy-6-methyloxan-2-yl]oxy}-
14-ethyl-7,12,13-trihydroxy-4-{[(2R,4R,5S,6S)-
5-hydroxy-4-methoxy-4,6-dimethyloxan-2-yl]oxy}-
3,5,7,9,11,13-hexamethyl-1-oxacyclotetradecane-2,10-dione
Identifiers
CAS number 114-07-8
ATC code D10AF02 J01FA01 (WHO) S01AA17 (WHO) Template:ATCvet
PubChem 3255
DrugBank DB00199
Chemical data
Formula Template:OrganicBox atomTemplate:OrganicBox atomTemplate:OrganicBoxTemplate:OrganicBoxTemplate:OrganicBoxTemplate:OrganicBoxTemplate:OrganicBoxTemplate:OrganicBoxTemplate:OrganicBoxTemplate:OrganicBoxTemplate:OrganicBoxTemplate:OrganicBoxTemplate:OrganicBoxTemplate:OrganicBox atomTemplate:OrganicBoxTemplate:OrganicBox atomTemplate:OrganicBoxTemplate:OrganicBoxTemplate:OrganicBoxTemplate:OrganicBoxTemplate:OrganicBoxTemplate:OrganicBoxTemplate:OrganicBox 
Mol. mass 733.93 g/mol
SMILES eMolecules & PubChem
Pharmacokinetic data
Bioavailability Depends on the ester type between 30% - 65%
Protein binding 90%
Metabolism liver (under 5% excreted unchanged)
Half life 1.5 hours
Excretion bile
Therapeutic considerations
Pregnancy cat.

A(AU) B(US)

Legal status

Prescription Only (S4)(AU) POM(UK) [[Prescription drug|Template:Unicode-only]](US)

Routes oral, iv, im, topical, ophthalmic eye drops

Mechanism of Action

  • Erythromycin acts by inhibition of protein synthesis by binding 50 S ribosomal subunits of susceptible organisms. It does not affect nucleic acid synthesis.

Structure

  • Erythromycin Delayed-release Capsules contain enteric-coated pellets of erythromycin base for oral administration.
  • Each Erythromycin Delayed-release Capsule contains 250 mg of erythromycin base.
  • Inactive Ingredients
  • Cellulosic polymers, citrate ester, D&C Red No. 30, D&C Yellow No. 10, magnesium stearate and povidone. The capsule shell contains FD&C Blue No. 1, FD&C Red No. 3, gelatin, and titanium dioxide.
  • Erythromycin is produced by a strain of Saccharopolyspora erythraea (formerly Streptomyces erythraeus) and belongs to the macrolide group of antibiotics. It is basic and readily forms salts with acids but it is the base which is microbiologically active. Erythromycin base is (3R*, 4S*, 5S*, 6R*, 7R*, 9R*, 11R*, 12R*, 13S*, 14R*)-4-[(2,6- Dideoxy-3-C-methyl-3-O-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)-β-D-xylo-hexopyranosyl]oxy]oxacyclotetradecane-2,10-dione.
This image is provided by the National Library of Medicine.

Pharmacodynamics

Microbiology:

  • 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 β-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)
  • Haemophilus influenzae (not all strains of this organism are susceptible at the erythromycin concentrations ordinarily achieved)
  • Treponema pallidum
  • Corynebacterium diphtheriae
  • Neisseria gonorrhoeae
  • Chlamydia trachomatis

Pharmacokinetics

There is limited information regarding Erythromycin (ophthalmic) Pharmacokinetics in the drug label.

Nonclinical Toxicology

  • 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.

Clinical Studies

There is limited information regarding Erythromycin (ophthalmic) Clinical Studies in the drug label.

How Supplied

Sterile Erythromycin Ophthalmic Ointment USP, 0.5% is available as follows:

3.5 g (1/8 oz) sterile tamper-resistant tube

(NDC 17478-824-35)

Carton of fifty (50) Unit Dose 1 g tube

(NDC 17478-824-01)

Avoid excessive heat.

Protect from freezing.

PREMIERPro™Rx Manufactured by: Akorn Inc Lake Forest, IL 60045

PREMIERPro™Rx is a trademark of Premier Inc., used under license.

PERT00N Rev. 12/12

Storage

  • Store at 20° to 25°C (68° to 77°F)

Images

Drug Images

{{#ask: Page Name::Erythromycin (ophthalmic) |?Pill Name |?Drug Name |?Pill Ingred |?Pill Imprint |?Pill Dosage |?Pill Color |?Pill Shape |?Pill Size (mm) |?Pill Scoring |?NDC |?Drug Author |format=template |template=DrugPageImages |mainlabel=- |sort=Pill Name }}

Package and Label Display Panel

Principal Display Panel Text for Container Label:

NDC 17478-824-35 Premier Logo

ERYTHROMYCIN OPHTHALMIC

OINTMENT USP, 0.5%

Rx only Sterile

Net Wt. 3.5 g (1/8 oz.)

This image is provided by the National Library of Medicine.
Principal Display Panel Text for Carton Label:

NDC 17478-824-35

ERYTHROMYCIN OPHTHALMIC

OINTMENT USP, 0.5%

Sterile

Net Wt 3.5 g (1/8 oz.)

Rx only Premier Logo

This image is provided by the National Library of Medicine.

{{#ask: Label Page::Erythromycin (ophthalmic) |?Label Name |format=template |template=DrugLabelImages |mainlabel=- |sort=Label Page }}

Patient Counseling Information

  • Avoid contaminating the applicator tip with material from the eye, fingers, or other source.

Precautions with Alcohol

Alcohol-Erythromycin (ophthalmic) interaction has not been established. Talk to your doctor about the effects of taking alcohol with this medication.

Brand Names

There is limited information regarding Erythromycin (ophthalmic) Brand Names in the drug label.

Look-Alike Drug Names

There is limited information regarding Erythromycin (ophthalmic) Look-Alike Drug Names in the drug label.

Drug Shortage Status

Price

References

The contents of this FDA label are provided by the National Library of Medicine.