E.E.S Erythromycin Ethylsuccinate 200 mg/5mL Granule, For Suspension, 100 mL
🆔 Identity & classification
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🏷️ RxNorm drug class
This medicine belongs to the Macrolide class.
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🏭 Manufacturer & labeler
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🩺 Clinical
- Erythromycin treats a pretty wide range of bacterial infections. That includes respiratory infections like bronchitis and pneumonia, skin infections, whooping cough, Legionnaires'...
- What kinds of infections does erythromycin treat?
- It depends on the form you have. If you're taking ERY-TAB delayed-release tablets, they work best on an empty stomach — ideally about 2 hours before a meal, though taking them with...
- Can I take this on an empty stomach, or do I need food?
Patient education
Supplement & herbal interactions
Some supplements/herbs that may interact with Erythromycin Ethylsuccinate — tap one for details:
Erythromycin Ethylsuccinate may be associated with lower levels of 7 nutrients — worth a chat with your pharmacist, not a cause for alarm.
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Ask a licensed pharmacist directly — free, answered by our team.
💊 What it looks like
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🧪 Inactive Ingredients / Excipients
Inactive ingredients, also called excipients, are components of the drug product other than the active ingredient. They may include fillers, dyes, coatings, preservatives, flavors, or other formulation ingredients.
💡 Tap an ingredient (hover on desktop) to see what it is and why it’s used.
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UNII K679OBS311
Carboxymethylcellulose sodium is a plant-derived thickening agent made from cellulose. In medicines, it acts as a binder to hold ingredients together, a disintegrant to help the tablet break apart, or a thickener in liquids.
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UNII 2968PHW8QP
A weak organic acid derived from citrus fruits or made through fermentation. It works as a buffer to control pH, a preservative to extend shelf life, and a flavoring agent in medications.
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UNII PN2ZH5LOQY
A synthetic red dye approved by the FDA for use in foods, medicines, and cosmetics. It serves as a colorant to make tablets, capsules, and liquids visually distinctive for product identification.
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UNII 6M3P64V0NC
A fine powder made from magnesium, aluminum, and silicon compounds. It absorbs moisture and helps keep medicine ingredients from clumping or separating, so the product stays stable and flows smoothly during manufacturing.
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UNII 1Q73Q2JULR
Sodium citrate is a salt derived from citric acid. It works as a buffer to maintain the medicine's pH level and may also help improve taste or act as a preservative in the formulation.
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UNII C151H8M554
A natural sugar derived from sugar cane or sugar beets. It's used as a sweetener, filler, and binder to improve taste, add bulk, and help hold tablet or capsule ingredients together.
6 inactive ingredients listed in the exact product block matched to this NDC.
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ingredient classCode="IACT" elements from the exact product block matched by this NDC. Label-section narrative from DailyMed / the openFDA label index is shown separately when available.Inactive ingredient FAQ
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💲 Pricing
A drug doesn't have one price. Each row is a different public payment system, and none is what you'd pay at the counter — that depends on your insurance. The ⓘ on each row explains what it measures.
| Price system | Per mL | Per package |
|---|---|---|
| Retail pharmacies payNADAC · weekly | Not in the retail survey — common for institutional, discontinued, or low-volume packs. | |
| Medicaid paysCMS SDUD · 12 mo | $3.58 | $357.97 / 100 ml |
| Medicare drug plans payPart D · quarterly | No Part D plan price is available for this NDC in our data. | |
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🔁 Therapeutic equivalents
| Product | Labeler | Pack | NADAC/unit | TE | Status | Price vs. this |
|---|---|---|---|---|---|---|
| Erythromycin Ethylsuccinate 200 mg/5mL 52536-0132-13 | Wilshire | 100 ml | $0.914 | AB | Availability likely | — |
| Erythromycin Ethylsuccinate 200 mg/5mL 52536-0134-13 | Wilshire | 100 ml | $0.914 | AB | Availability likely | — |
| Erythromycin Ethylsuccinate 200 mg/5mL 60219-1503-01 | Amneal | 100 ml | $0.914 | AB | Availability likely | — |
| Erythromycin Ethylsuccinate 200 mg/5mL 62559-0630-01 | ANI | 100 ml | $0.914 | AB | Availability likely | — |
| Erythromycin Ethylsuccinate 200 mg/5mL 69238-1503-01 | Amneal | 100 ml | $0.914 | AB | Availability likely | — |
| Erythromycin Ethylsuccinate 200 mg/5mL 75834-0295-01 | Nivagen | 100 ml | $0.914 | AB | Availability likely | — |
| Erythromycin Ethylsuccinate 200 mg/5mL 52536-0136-13 | Wilshire | 200 ml | $1.531 | AB | Availability likely | — |
| Erythromycin Ethylsuccinate 200 mg/5mL 62559-0440-01 | ANI | 100 ml | $1.977 | AB | Discontinued | — |
| Ery-Ped 200 mg/5mL 24338-0132-13 | Azurity | 100 ml | — | AB | FDA listed | — |
| E.e.s 200 mg/5mLthis 24338-0134-02 | Azurity | 100 ml | — | AB | FDA listed | — |
| E.e.s 200 mg/5mL 24338-0136-10 | Azurity | 200 ml | — | AB | FDA listed | — |
| Erythromycin ethylsuccinate 200 mg/5mL 71209-0102-21 | Cadila | 100 ml | — | AB | FDA listed | — |
| Erythromycin ethylsuccinate 200 mg/5mL 72162-2657-01 | Bryant | 100 ml | — | AB | FDA listed | — |
| E.e.s 200 mg/5mL 80005-0152-18 | Carnegie | 100 ml | — | AB | Discontinued | — |
| E.e.s 200 mg/5mL 80005-0153-34 | Carnegie | 200 ml | — | AB | Discontinued | — |
| Erythromycin ethylsuccinate 200 mg/5mL 85742-0029-28 | Kanchan | 100 ml | — | AB | FDA listed | — |
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⏳ Availability & generic status
FDA-approved generic versions are listed, and recent pricing/market data suggests they may be available — see Therapeutic equivalents.
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🗺️ Medicaid utilization & spend
📊 Medicare Part D spend CMS · PART D · 2026 (Q1)
🔬 Reported adverse events (FAERS)
Top reported reactions
Reporter sex
Serious outcomes
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📦 Packaging — all sizes for this product
| Package NDC | Description | Marketing start | Status |
|---|---|---|---|
| 24338-0134-02 You're viewing this | 100 mL in 1 BOTTLE (24338-134-02) | 2011-04-18 | Active |
🧭 About this NDC listing & data coverage
What data is (and isn’t) available for this NDC — tap to expand
| NDC identity (package / product / labeler codes) | ✓ Available |
| Labeler | ✓ Available |
| Product & package description | ✓ Available |
| Marketing category & status | ✓ Available |
| Active ingredient / dosage form / route | ✓ Available |
| FDA label (SPL via DailyMed) | ✓ Available |
| Package photos | ✓ Available |
| Inactive ingredients (structured) | ✓ Available |
| NADAC pharmacy acquisition price (CMS) | — Not published for this NDC CMS publishes NADAC only for NDCs reported in its retail-pharmacy survey. |
| Orange Book / therapeutic-equivalence data | ✓ Available |
| HCPCS J-code billing crosswalk | — Not published for this NDC Most self-administered / retail products have no J-code — that is normal. |
| Medicaid utilization (CMS SDUD) | ✓ Available |
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📄 Full prescribing information FDA SPL
🎯 Indications and Usage ▾
INDICATIONS AND USAGE To reduce the development of drug-resistant bacteria and maintain the effectiveness of E.E.S. and other antibacterial drugs, E.E.S. should be used only to treat or prevent infections that are proven or strongly suspected to be caused by susceptible bacteria. When culture and susceptibility information are available, they should be considered in selecting or modifying antibacterial therapy. In the absence of such data, local epidemiology and susceptibility patterns may contribute to the empiric selection of therapy.
E.E.S. is indicated in the treatment of infections caused by susceptible strains of the designated organisms in the diseases listed below: Upper respiratory tract infections of mild to moderate degree caused by Streptococcus pyogenes, Streptococcus pneumoniae, or Haemophilus influenzae (when used concomitantly with adequate doses of sulfonamides, since many strains of H. influenzae are not susceptible to the erythromycin concentrations ordinarily achieved). (See appropriate sulfonamide labeling for prescribing information.) Lower-respiratory tract infections of mild to moderate severity caused by Streptococcus pneumoniae or Streptococcus pyogenes .
Listeriosis caused by Listeria monocytogenes . Pertussis (whooping cough) caused by Bordetella pertussis . Erythromycin is effective in eliminating the organism from the nasopharynx of infected individuals rendering them noninfectious.
Some clinical studies suggest that erythromycin may be helpful in the prophylaxis of pertussis in exposed susceptible individuals. Respiratory tract infections due to Mycoplasma pneumoniae . Skin and skin structure infections of mild to moderate severity caused by Streptococcus pyogenes or Staphylococcus aureus (resistant staphylococci may emerge during treatment).
Diphtheria: Infections due to Corynebacterium diphtheriae , as an adjunct to antitoxin, to prevent establishment of carriers and to eradicate the organism in carriers. Erythrasma: In the treatment of infections due to Corynebacterium minutissimum . Intestinal amebiasis caused by Entamoeba histolytica (oral erythromycins only).
Extraenteric amebiasis requires treatment with other agents. Acute pelvic inflammatory disease caused by Neisseria gonorrhoeae : As an alternative drug in treatment of acute pelvic inflammatory disease caused by N. gonorrhoeae in female patients with a history of sensitivity to penicillin. Patients should have a serologic test for syphilis before receiving erythromycin as treatment of gonorrhea and a follow-up serologic test for syphilis after 3 months.
Syphilis caused by Treponema pallidum : Erythromycin is an alternate choice of treatment for primary syphilis in patients allergic to the penicillins. In treatment of primary syphilis, spinal fluid examinations should be done before treatment and as part of follow-up after therapy. Erythromycins are indicated for the treatment of the following infections caused by Chlamydia trachomatis : conjunctivitis of the newborn, pneumonia of infancy, and urogenital infections during pregnancy.
When tetracyclines are contraindicated or not tolerated, erythromycin is indicated for the treatment of uncomplicated urethral, endocervical, or rectal infections in adults due to Chlamydia trachomatis . When tetracyclines are contraindicated or not tolerated, erythromycin is indicated for the treatment of nongonococcal urethritis caused by Ureaplasma urealyticum . Legionnaires' Disease caused by Legionella pneumophila : Although no controlled clinical efficacy studies have been conducted, in vitro and limited preliminary clinical data suggest that erythromycin may be effective in treating Legionnaires' Disease.
Prophylaxis Prevention of Initial Attacks of Rheumatic Fever Penicillin is considered by the American Heart Association to be the drug of choice in the prevention of initial attacks of rheumatic fever (treatment of Streptococcus pyogenes infections of the upper respiratory tract, e.g., tonsillitis or…
⏱️ Dosage and Administration ▾
DOSAGE AND ADMINISTRATION Erythromycin ethylsuccinate suspensions and film-coated tablets may be administered without regard to meals. Children Age, weight, and severity of the infection are important factors in determining the proper dosage. In mild to moderate infections, the usual dosage of erythromycin ethylsuccinate for children is 30 to 50 mg/kg/day in equally divided doses every 6 hours.
For more severe infections, this dosage may be doubled. If twice-a-day dosage is desired, one-half of the total daily dose may be given every 12 hours. Doses may also be given three times daily by administering one-third of the total daily dose every 8 hours.
The following dosage schedule is suggested for mild to moderate infections: Body Weight Total Daily Dose Under 10 lbs 30 to 50 mg/kg/day 15 to 25 mg/lb/day 10 to 15 lbs 200 mg 16 to 25 lbs 400 mg 26 to 50 lbs 800 mg 51 to 100 lbs 1200 mg over 100 lbs 1600 mg Adults 400 mg erythromycin ethylsuccinate every 6 hours is the usual dose. Dosage may be increased up to 4 g per day according to the severity of the infection. If twice-a-day dosage is desired, one-half of the total daily dose may be given every 12 hours.
Doses may also be given three times daily by administering one-third of the total daily dose every 8 hours. For adult dosage calculation, use a ratio of 400 mg of erythromycin activity as the ethylsuccinate to 250 mg of erythromycin activity as the stearate, base or estolate. In the treatment of streptococcal infections, a therapeutic dosage of erythromycin ethylsuccinate should be administered for at least 10 days.
In continuous prophylaxis against recurrences of streptococcal infections in persons with a history of rheumatic heart disease, the usual dosage is 400 mg twice a day. For Treatment of Urethritis Due to C. trachomatis or U. urealyticum 800 mg three times a day for 7 days. For Treatment of Primary Syphilis Adults 48 to 64 g given in divided doses over a period of 10 to 15 days.
For Intestinal Amebiasis Adults 400 mg four times daily for 10 to 14 days. Children 30 to 50 mg/kg/day in divided doses for 10 to 14 days. For Use in Pertussis Although optimal dosage and duration have not been established, doses of erythromycin utilized in reported clinical studies were 40 to 50 mg/kg/day, given in divided doses for 5 to 14 days.
For Treatment of Legionnaires' Disease Although optimal doses have not been established, doses utilized in reported clinical data were those recommended above (1.6 to 4 g daily in divided doses). Directions for Mixing E.E.S. Granules 100 mL Add 77 mL water and shake vigorously.
This makes 100 mL of suspension. 200 mL Add 154 mL water and shake vigorously. This makes 200 mL of suspension.
⛔ Contraindications ▾
CONTRAINDICATIONS Erythromycin is contraindicated in patients with known hypersensitivity to this antibiotic. Erythromycin is contraindicated in patients taking terfenadine, astemizole, pimozide, or cisapride (see PRECAUTIONS – Drug Interactions ). Do not use erythromycin concomitantly with HMG CoA reductase inhibitors (statins) that are extensively metabolized by CYP 3A4 (lovastatin or simvastatin), due to the increased risk of myopathy, including rhabdomyolysis.
⚠️ Warnings ▾
WARNINGS Hepatotoxicity There have been reports of hepatic dysfunction, including increased liver enzymes, and hepatocellular and/or cholestatic hepatitis, with or without jaundice, occurring in patients receiving oral erythromycin products. QT Prolongation Erythromycin has been associated with prolongation of the QT interval and infrequent cases of arrhythmia. Cases of torsades de pointes have been spontaneously reported during postmarketing surveillance in patients receiving erythromycin.
Fatalities have been reported. Erythromycin should be avoided in patients with known prolongation of the QT interval, patients with ongoing proarrhythmic conditions such as uncorrected hypokalemia or hypomagnesemia, clinically significant bradycardia, and in patients receiving Class IA (quinidine, procainamide) or Class III (dofetilide, amiodarone, sotalol) antiarrhythmic agents. Elderly patients may be more susceptible to drug-associated effects on the QT interval.
Syphilis in Pregnancy There have been reports suggesting that erythromycin does not reach the fetus in adequate concentration to prevent congenital syphilis. Infants born to women treated during pregnancy with oral erythromycin for early syphilis should be treated with an appropriate penicillin regimen. Clostridium difficile Associated Diarrhea Clostridium difficile associated diarrhea (CDAD) has been reported with use of nearly all antibacterial agents, including E.E.S., and may range in severity from mild diarrhea to fatal colitis.
Treatment with antibacterial agents alters the normal flora of the colon leading to overgrowth of C. difficile . C. difficile produces toxins A and B which contribute to the development of CDAD. Hypertoxin producing strains of C. difficile cause increased morbidity and mortality, as these infections can be refractory to antimicrobial therapy and may require colectomy.
CDAD must be considered in all patients who present with diarrhea following antibiotic use. Careful medical history is necessary since CDAD has been reported to occur over two months after the administration of antibacterial agents. If CDAD is suspected or confirmed, ongoing antibiotic use not directed against C. difficile may need to be discontinued.
Appropriate fluid and electrolyte management, protein supplementation, antibiotic treatment of C. difficile , and surgical evaluation should be instituted as clinically indicated. Drug Interactions Serious adverse reactions have been reported in patients taking erythromycin concomitantly with CYP3A4 substrates. These include colchicine toxicity with colchicine; rhabdomyolysis with simvastatin, lovastatin, and atorvastatin; and hypotension with calcium channel blockers metabolized by CYP3A4 (e.g., verapamil, amlodipine, diltiazem) (see PRECAUTIONS – Drug Interactions ).
There have been post-marketing reports of colchicine toxicity with concomitant use of erythromycin and colchicine. This interaction is potentially life-threatening, and may occur while using both drugs at their recommended doses (see PRECAUTIONS – Drug Interactions ). Rhabdomyolysis with or without renal impairment has been reported in seriously ill patients receiving erythromycin concomitantly with lovastatin.
Therefore, patients receiving concomitant lovastatin and erythromycin should be carefully monitored for creatine kinase (CK) and serum transaminase levels. (See package insert for lovastatin.)
🤒 Adverse Reactions ▾
ADVERSE REACTIONS The most frequent side effects of oral erythromycin preparations are gastrointestinal and are dose-related. They include nausea, vomiting, abdominal pain, diarrhea and anorexia. Symptoms of hepatitis, hepatic dysfunction and/or abnormal liver function test results may occur (see WARNINGS section).
Onset of pseudomembranous colitis symptoms may occur during or after antibacterial treatment (see WARNINGS section). Erythromycin has been associated with QT prolongation and ventricular arrhythmias, including ventricular tachycardia and torsades de pointes (see WARNINGS ). Allergic reactions ranging from urticaria to anaphylaxis have occurred.
Skin reactions ranging from mild eruptions to erythema multiforme, Stevens-Johnson syndrome, and toxic epidermal necrolysis have been reported rarely. There have been reports of interstitial nephritis coincident with erythromycin use. There have been rare reports of pancreatitis and convulsions.
There have been isolated reports of reversible hearing loss occurring chiefly in patients with renal insufficiency and in patients receiving high doses of erythromycin.
🔄 Drug Interactions ▾
Drug Interactions Theophylline Erythromycin use in patients who are receiving high doses of theophylline may be associated with an increase in serum theophylline levels and potential theophylline toxicity. In case of theophylline toxicity and/or elevated serum theophylline levels, the dose of theophylline should be reduced while the patient is receiving concomitant erythromycin therapy. There have been published reports suggesting that when oral erythromycin is given concurrently with theophylline there is a decrease in erythromycin serum concentrations of approximately 35%.
The mechanism by which this interaction occurs is unknown. The decrease in erythromycin concentrations due to co-administration of theophylline could result in subtherapeutic concentrations of erythromycin. Verapamil Hypotension, bradyarrhythmias, and lactic acidosis have been observed in patients receiving concurrent verapamil, belonging to the calcium channel blockers drug class.
Digoxin Concomitant administration of erythromycin and digoxin has been reported to result in elevated digoxin serum levels. Anticoagulants There have been reports of increased anticoagulant effects when erythromycin and oral anticoagulants were used concomitantly. Increased anticoagulation effects due to interactions of erythromycin with various oral anticoagulants may be more pronounced in the elderly.
Erythromycin is a substrate and inhibitor of the 3A isoform subfamily of the cytochrome p450 enzyme system (CYP3A). Coadministration of erythromycin and a drug primarily metabolized by CYP3A may be associated with elevations in drug concentrations that could increase or prolong both the therapeutic and adverse effects of the concomitant drug. Dosage adjustments may be considered, and when possible, serum concentrations of drugs primarily metabolized by CYP3A should be monitored closely in patients concurrently receiving erythromycin.
The following are examples of some clinically significant CYP3A based drug interactions. Interactions with other drugs metabolized by the CYP3A isoform are also possible. The following CYP3A based drug interactions have been observed with erythromycin products in post-marketing experience: Ergotamine/dihydroergotamine Post-marketing reports indicate that coadministration of erythromycin with ergotamine or dihydroergotamine has been associated with acute ergot toxicity characterized by vasospasm and ischemia of the extremities and other tissues including the central nervous system.
Concomitant administration of erythromycin with ergotamine or dihydroergotamine is contraindicated (see CONTRAINDICATIONS ). Triazolobenzodiazepines (such as triazolam and alprazolam) and related benzodiazepines Erythromycin has been reported to decrease the clearance of triazolam and midazolam, and thus, may increase the pharmacologic effect of these benzodiazepines. HMG-CoA Reductase Inhibitors Erythromycin has been reported to increase concentrations of HMG-CoA reductase inhibitors (e.g., lovastatin and simvastatin).
Rare reports of rhabdomyolysis have been reported in patients taking these drugs concomitantly. Sildenafil (Viagra) Erythromycin has been reported to increase the systemic exposure (AUC) of sildenafil. Reduction of sildenafil dosage should be considered.
(See Viagra package insert.) There have been spontaneous or published reports of CYP3A based interactions of erythromycin with cyclosporine, carbamazepine, tacrolimus, alfentanil, disopyramide, rifabutin, quinidine, methylprednisolone, cilostazol, vinblastine, and bromocriptine. Concomitant administration of erythromycin with cisapride, pimozide, astemizole, or terfenadine is contraindicated (see CONTRAINDICATIONS ). In addition, there have been reports of interactions of erythromycin with drugs not thought to be metabolized by CYP3A, including hexobarbital, phenytoin, and valproate.
Erythromycin has been reported to significantly alter the metabolism of the nonsedating antihistamines terfenadine and astemi…
🔄 Drug / Laboratory Test Interactions ▾
Drug/Laboratory Test Interactions Erythromycin interferes with the fluorometric determination of urinary catecholamines.
🤰 Pregnancy ▾
Pregnancy Teratogenic Effects There is no evidence of teratogenicity or any other adverse effect on reproduction in female rats fed erythromycin base by oral gavage at 350 mg/kg/day (approximately twice the maximum recommended human dose on a body surface area) prior to and during mating, during gestation, and through weaning. No evidence of teratogenicity or embryotoxicity was observed when erythromycin base was given by oral gavage to pregnant rats and mice at 700 mg/kg/day and to pregnant rabbits at 125 mg/kg/day (approximately 1 to 3 times the maximum recommended human dose).
🧒 Pediatric Use ▾
Pediatric Use See INDICATIONS AND USAGE and DOSAGE AND ADMINISTRATION sections.
🧓 Geriatric Use ▾
Geriatric Use Elderly patients, particularly those with reduced renal or hepatic function, may be at increased risk for developing erythromycin-induced hearing loss (see ADVERSE REACTIONS and DOSAGE AND ADMINISTRATION ). Elderly patients may be more susceptible to the development of torsades de pointes arrhythmias than younger patients (see WARNINGS ). Elderly patients may experience increased effects of oral anticoagulant therapy while undergoing treatment with erythromycin (see PRECAUTIONS – Drug Interactions ).
E.E.S. ® Granules contains 25.9 mg (1.1 mEq) of sodium per individual dose. The geriatric population may respond with a blunted natriuresis to salt loading. This may be clinically important with regard to such diseases as congestive heart failure.
E.E.S. 400 film-coated contains 47 mg (2 mEq) of sodium per tablet and 10.0 mg (0.3 mEq) of potassium per tablet.
🆘 Overdosage ▾
OVERDOSAGE In case of overdosage, erythromycin should be discontinued. Overdosage should be handled with the prompt elimination of unabsorbed drug and all other appropriate measures should be instituted. Erythromycin is not removed by peritoneal dialysis or hemodialysis.
🧬 Clinical Pharmacology ▾
CLINICAL PHARMACOLOGY Orally administered erythromycin ethylsuccinate suspensions and film-coated tablets are readily and reliably absorbed. Comparable serum levels of erythromycin are achieved in the fasting and nonfasting states. Erythromycin diffuses readily into most body fluids.
Only low concentrations are normally achieved in the spinal fluid, but passage of the drug across the blood-brain barrier increases in meningitis. In the presence of normal hepatic function, erythromycin is concentrated in the liver and excreted in the bile; the effect of hepatic dysfunction on excretion of erythromycin by the liver into the bile is not known. Less than 5 percent of the orally administered dose of erythromycin is excreted in active form in the urine.
Erythromycin crosses the placental barrier, but fetal plasma levels are low. The drug is excreted in human milk. Microbiology Mechanism of Action Erythromycin acts by inhibition of protein synthesis by binding 50S ribosomal subunits of susceptible organisms.
It does not affect nucleic acid synthesis. Resistance The major route of resistance is modification of the 23S rRNA in the 50S ribosomal subunit to insensitivity while efflux can also be significant. Interactions With Other Antimicrobials Antagonism exists in vitro between erythromycin and clindamycin, lincomycin, and chloramphenicol.
Antimicrobial Activity Erythromycin has been shown to be active against most isolates of the following microorganisms both in vitro and in clinical infections [ see Indications and Usage (1) ]. Aerobic bacteria Gram-positive bacteria: Corynebacterium diphtheriae Corynebacterium minutissimum Listeria monocytogenes Staphylococcus aureus (resistant organisms may emerge during treatment) Streptococcus pneumoniae Streptococcus pyogenes Gram-negative bacteria: Bordetella pertussis Haemophilus influenzae Legionella pneumophila Neisseria gonorrhoeae Other microorganisms: Chlamydia trachomatis Entamoeba histolytica Mycoplasma pneumoniae Treponema pallidum Ureaplasma urealyticum The following in vitro data are available, but their clinical significance is unknown.
At least 90 percent of the following bacteria exhibit in vitro minimum inhibitory concentration (MIC) less than or equal to the susceptible breakpoint for erythromycin against isolates of similar genus or organism group. However, the efficacy of erythromycin in treating clinical infections caused by these bacteria has not been established in adequate and well-controlled clinical trials. Aerobic bacteria Gram-positive bacteria: Viridans group streptococci Gram-negative bacteria : Moraxella catarrhalis Susceptibility Testing For specific information regarding susceptibility test interpretive criteria and associated test methods and quality control standards recognized by FDA for this drug, please see: https://www.fda.gov/STIC.
🧬 Mechanism of Action ▾
Mechanism of Action Erythromycin acts by inhibition of protein synthesis by binding 50S ribosomal subunits of susceptible organisms. It does not affect nucleic acid synthesis.
📦 How Supplied / Storage and Handling ▾
HOW SUPPLIED E.E.S. Granules 200 mg per 5 mL (erythromycin ethylsuccinate for oral suspension, USP) are pink granules with a cherry aroma and are supplied in 100-mL (NDC 24338-134-02) and 200-mL (NDC 24338-136-10) size bottles. Following reconstitution E.E.S.
Granules become a pink opaque suspension with a cherry aroma. E.E.S. 400 film-coated tablets (erythromycin ethylsuccinate tablets, USP) 400 mg, are supplied as pink oval tablets imprinted with the two letter designation, EE, in: Bottles of 30 (NDC 24338-100-03) Bottles of 100 (NDC 24338-100-13) Recommended storage Store at 20° to 25°C (68° to 77°F) [See USP Controlled Room Temperature].
Store granules, prior to mixing, at 20° to 25°C (68° to 77°F) [See USP Controlled Room Temperature]. After mixing, refrigerate and use within 10 days.
📦 Storage and Handling ▾
Recommended storage Store at 20° to 25°C (68° to 77°F) [See USP Controlled Room Temperature]. Store granules, prior to mixing, at 20° to 25°C (68° to 77°F) [See USP Controlled Room Temperature]. After mixing, refrigerate and use within 10 days.
📋 Description ▾
DESCRIPTION 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. The base, the stearate salt, and the esters are poorly soluble in water.
Erythromycin ethylsuccinate is an ester of erythromycin suitable for oral administration. Erythromycin ethylsuccinate is known chemically as erythromycin 2'-(ethylsuccinate). The molecular formula is C 43 H 75 NO 16 and the molecular weight is 862.06.
The structural formula is: E.E.S. Granules are intended for reconstitution with water. Each 5-mL teaspoonful of reconstituted cherry-flavored suspension contains erythromycin ethylsuccinate equivalent to 200 mg of erythromycin.
The pleasant tasting, fruit-flavored liquids are supplied ready for oral administration. E.E.S. 200 Liquid: Each 5-mL teaspoonful of fruit-flavored suspension contains erythromycin ethylsuccinate equivalent to 200 mg of erythromycin.
E.E.S. 400 Liquid: Each 5-mL teaspoonful of orange-flavored suspension contains erythromycin ethylsuccinate equivalent to 400 mg of erythromycin. Granules and ready-made suspensions are intended primarily for pediatric use but can also be used in adults.
E.E.S. 400 film-coated tablets: Each tablet contains erythromycin ethylsuccinate equivalent to 400 mg of erythromycin. The film-coated tablets are intended primarily for adults or older children.
Chemical Structure Inactive Ingredients E.E.S. Granules: Citric acid, FD&C Red No. 3, magnesium aluminum silicate, sodium carboxymethylcellulose, sodium citrate, sucrose and artificial flavor.
E.E.S. 400 film-coated tablets: confectioner's sugar (contains corn starch), corn starch, FD&C Red No. 40, magnesium stearate, polacrilin potassium, sodium citrate and Opadry ® Pink 321A140035 (consists of the following ingredients: D&C Red #30, D&C Yellow #10, glycerol monocaprylocaprate, Macrogol (PEG) Polyvinyl Alcohol Graft Copolymer, polyvinyl alcohol partially hydrolyzed, talc and titanium dioxide.
E.E.S. 200 Liquid: FD&C Red No. 40, methylparaben, polysorbate 60, propylparaben, sodium citrate, sucrose, water, xanthan gum and natural and artificial flavors.
E.E.S. 400 Liquid: D&C Yellow No. 10, FD&C Yellow No.
6, methylparaben, polysorbate 60, propylparaben, sodium citrate, sucrose, water, xanthan gum and natural and artificial flavors.
💬 Information for Patients ▾
Information for Patients Patients should be counseled that antibacterial drugs, including E.E.S., should only be used to treat bacterial infections. They do not treat viral infections (e.g., the common cold). When E.E.S. is prescribed to treat a bacterial infection, patients should be told that although it is common to feel better early in the course of therapy, the medication should be taken exactly as directed.
Skipping doses or not completing the full course of therapy may (1) decrease the effectiveness of the immediate treatment and (2) increase the likelihood that bacteria will develop resistance and will not be treatable by E.E.S. or other antibacterial drugs in the future. Diarrhea is a common problem caused by antibiotics which usually ends when the antibiotic is discontinued. Sometimes after starting treatment with antibiotics, patients can develop watery and bloody stools (with or without stomach cramps and fever) even as late as two or more months after having taken the last dose of the antibiotic.
If this occurs, patients should contact their physician as soon as possible.