Skip to main navigation Skip to main content Skip to footer For Medicare For Providers For Brokers For Employers Español For Individuals & Families: For Individuals & Families Medical Dental Other Supplemental Explore coverage through work How to Buy Health Insurance Types of Dental Insurance Open Enrollment vs. Special Enrollment See all topics Shop for Medicare plans Member Guide Find a Doctor Log in to myCigna
Home Knowledge Center Wellness Library erythromycin (oral/injection)

erythromycin (oral/injection)

Pronunciation: er ITH roe MYE sin

Brand: E.E.S. Granules, E.E.S.-200, E.E.S.-400 Filmtab, EryPed 200, EryPed 400, Ery-Tab, Erythrocin Lactobionate, Erythrocin Stearate Filmtab

E.E.S.-400 Filmtab

slide 1 of 22, E.E.S.-400 Filmtab,

ethylsuccinate 400 mg, oval, pink, imprinted with LOGO EE

Image of E.E.S.-400 Filmtab
slide 1 of 22

Erythromycin Base

slide 2 of 22, Erythromycin Base,

250 mg, oval, pink, imprinted with EB, a

Image of Erythromycin Base
slide 2 of 22

Erythromycin Base

slide 3 of 22, Erythromycin Base,

500 mg, oval, pink, imprinted with EA

Image of Erythromycin Base
slide 3 of 22

Erythrocin Stearate Filmtab

slide 4 of 22, Erythrocin Stearate Filmtab,

stearate 250 mg, round, pink, imprinted with ES

Image of Erythrocin Stearate Filmtab
slide 4 of 22

Erythromycin Ethylsuccinate

slide 5 of 22, Erythromycin Ethylsuccinate,

ethylsuccinate 400 mg, oval, pink, imprinted with 74 ZE

Image of Erythromycin Ethylsuccinate
slide 5 of 22

Erythromycin Base

slide 6 of 22, Erythromycin Base,

250 mg, capsule, red, imprinted with ER

Image of Erythromycin Base
slide 6 of 22

Ery-Tab

slide 7 of 22, Ery-Tab,

250 mg, oval, white, imprinted with A, EC

Image of Ery-Tab
slide 7 of 22

Ery-Tab

slide 8 of 22, Ery-Tab,

333 mg, oval, white, imprinted with A, EH

Image of Ery-Tab
slide 8 of 22

Ery-Tab

slide 9 of 22, Ery-Tab,

500 mg, oval, white, imprinted with A, ED

Image of Ery-Tab
slide 9 of 22

E-Mycin

slide 10 of 22, E-Mycin,

250 mg, round, orange, imprinted with E-MYCIN 250mg

Image of E-Mycin
slide 10 of 22

E-Mycin

slide 11 of 22, E-Mycin,

333 mg, round, white, imprinted with E-MYCIN 333mg

Image of E-Mycin
slide 11 of 22

E.E.S.-400 Filmtab

slide 12 of 22, E.E.S.-400 Filmtab,

ethylsuccinate 400 mg, oblong, pink, imprinted with a EE

Image of E.E.S.-400 Filmtab
slide 12 of 22

Ery-Tab

slide 13 of 22, Ery-Tab,

250 mg, oblong, white, imprinted with EC, a

Image of Ery-Tab
slide 13 of 22

Ery-Tab

slide 14 of 22, Ery-Tab,

333 mg, oblong, white, imprinted with a EH, a

Image of Ery-Tab
slide 14 of 22

Ery-Tab

slide 15 of 22, Ery-Tab,

500 mg, oblong, pink, imprinted with a ED

Image of Ery-Tab
slide 15 of 22

Erythromycin Base

slide 16 of 22, Erythromycin Base,

250 mg, oval, pink, imprinted with AC39

Image of Erythromycin Base
slide 16 of 22

Erythromycin Base

slide 17 of 22, Erythromycin Base,

500 mg, oval, pink, imprinted with AC40

Image of Erythromycin Base
slide 17 of 22

Erythromycin Base

slide 18 of 22, Erythromycin Base,

250 mg, oval, pink, imprinted with a EB, EB

Image of Erythromycin Base
slide 18 of 22

Erythromycin Base

slide 19 of 22, Erythromycin Base,

500 mg, oval, pink, imprinted with a, EA

Image of Erythromycin Base
slide 19 of 22

Erythromycin Ethylsuccinate

slide 20 of 22, Erythromycin Ethylsuccinate,

ethylsuccinate 400 mg, oval, pink, imprinted with 74 ZE

Image of Erythromycin Ethylsuccinate
slide 20 of 22

Erythromycin Ethylsuccinate

slide 21 of 22, Erythromycin Ethylsuccinate,

ethylsuccinate 400 mg, oblong, peach, imprinted with M400

Image of Erythromycin Ethylsuccinate
slide 21 of 22

Erythromycin Base

slide 22 of 22, Erythromycin Base,

250 mg

Image of Erythromycin Base
slide 22 of 22
What is the most important information I should know about erythromycin?

What is the most important information I should know about erythromycin?

Tell your doctor about all your current medicines and any you start or stop using. Many drugs can interact, and some drugs should not be used together.

What is erythromycin?

What is erythromycin?

Erythromycin is an antibiotic that is used to treat or prevent many different types of infections caused by bacteria.

Erythromycin may also be used for purposes not listed in this medication guide.

What should I discuss with my healthcare provider before using erythromycin?

What should I discuss with my healthcare provider before using erythromycin?

You should not use erythromycin if you are allergic to it.

Some medicines can cause unwanted or dangerous effects when used with erythromycin. Your doctor may change your treatment plan if you also use:

  • lovastatin, simvastatin;
  • pimozide; or
  • ergotamine, or dihydroergotamine.

Tell your doctor if you have ever had:

  • liver or kidney disease;
  • myasthenia gravis;
  • a heart rhythm disorder (especially if you take medicine to treat it);
  • long QT syndrome (in you or a family member); or
  • an electrolyte imbalance (such as low levels of potassium or magnesium in your blood).

It is not known whether this medicine will harm an unborn baby. Tell your doctor if you are pregnant.

It may not be safe to breastfeed while using this medicine. Ask your doctor about any risk.

How should I use erythromycin?

How should I use erythromycin?

Follow all directions on your prescription label and read all medication guides or instruction sheets. Use the medicine exactly as directed.

Erythromycin oral is taken by mouth.

Erythromycin injection is given as an infusion into a vein, for a severe infection. A healthcare provider will give your first dose and may teach you how to properly use the medication by yourself.

Read and carefully follow any Instructions for Use provided with your medicine. Ask your doctor or pharmacist if you don't understand all instructions.

Prepare an injection only when you are ready to give it. Do not use if the medicine has changed colors or has particles in it. Call your pharmacist for new medicine.

You may need to shake the liquid medicine before you measure a dose. Use the dosing syringe provided, or use a medicine dose-measuring device (not a kitchen spoon).

Do not crush, chew, or break a delayed-release capsule or tablet. Swallow it whole.

Use this medicine for the full prescribed length of time, even if your symptoms quickly improve. Skipping doses can increase your risk of infection that is resistant to medication. Erythromycin will not treat a viral infection such as the flu or a common cold.

This medicine can affect the results of certain medical tests. Tell any doctor who treats you that you are using erythromycin.

Store at room temperature away from moisture, heat, and light.

What happens if I miss a dose?

What happens if I miss a dose?

Use the medicine as soon as you can, but skip the missed dose if it is almost time for your next dose. Do not use two doses at one time.

What happens if I overdose?

What happens if I overdose?

Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.

What should I avoid while using erythromycin?

What should I avoid while using erythromycin?

Antibiotic medicines can cause diarrhea, which may be a sign of a new infection. If you have diarrhea that is watery or bloody, call your doctor before using anti-diarrhea medicine.

What are the possible side effects of erythromycin?

What are the possible side effects of erythromycin?

Get emergency medical help if you have signs of an allergic reaction (hives, difficult breathing, swelling in your face or throat) or a severe skin reaction (fever, sore throat, burning eyes, skin pain, red or purple skin rash with blistering and peeling).

Call your doctor at once if you have:

  • severe stomach pain, diarrhea that is watery or bloody (even if it occurs months after your last dose);
  • headache with chest pain and severe dizziness, fainting, fast or pounding heartbeats;
  • a seizure;
  • hearing problems (rare);
  • pancreatitis --severe pain in your upper stomach spreading to your back, nausea and vomiting; or
  • liver problems --loss of appetite, stomach pain (upper right side), tiredness, easy bruising or bleeding, dark urine, clay-colored stools, jaundice (yellowing of the skin or eyes).

Serious side effects may be more likely in older adults, including hearing loss, or a life-threatening fast heart rate.

Call your doctor if a baby using this medicine is vomiting or irritable with feeding.

Common side effects may include:

  • severe stomach pain, diarrhea that is watery or bloody (even if it occurs months after your last dose);
  • liver problems; or
  • abnormal liver function tests.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

What other drugs will affect erythromycin?

What other drugs will affect erythromycin?

Sometimes it is not safe to use certain medications at the same time. Some drugs can affect your blood levels of other drugs you take, which may increase side effects or make the medications less effective.

Many drugs can affect erythromycin, and some drugs should not be used at the same time. Tell your doctor about all your current medicines and any medicine you start or stop using. This includes prescription and over-the-counter medicines, vitamins, and herbal products. Not all possible interactions are listed here.

Where can I get more information?

Where can I get more information?

Your pharmacist can provide more information about erythromycin.

This information does not replace the advice of a doctor. Healthwise, Incorporated, disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. Learn how we develop our content.

Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.

<cipublic-spinner variant="large"><span>Loading…</span></cipublic-spinner>

Page Footer

I want to...

Get an ID card File a claim View my claims and EOBs Check coverage under my plan See prescription drug list Find an in-network doctor, dentist, or facility Find a form Find 1095-B tax form information View the Cigna Glossary Contact Cigna

Audiences

Individuals and Families Medicare Employers Brokers Providers

Secure Member Sites

myCigna member portal Health Care Provider portal Cigna for Employers Client Resource Portal Cigna for Brokers

Cigna Company Information

About Cigna Company Profile Careers Newsroom Investors Suppliers Third Party Administrators International Evernorth

 Cigna. All rights reserved.

Privacy Legal Product Disclosures Cigna Company Names Customer Rights Accessibility Non-Discrimination Notice [PDF] Language Assistance [PDF] Report Fraud Sitemap

Disclaimer

Individual and family medical and dental insurance plans are insured by Cigna Health and Life Insurance Company (CHLIC), Cigna HealthCare of Arizona, Inc., Cigna HealthCare of Illinois, Inc., and Cigna HealthCare of North Carolina, Inc. Group health insurance and health benefit plans are insured or administered by CHLIC, Connecticut General Life Insurance Company (CGLIC), or their affiliates (see a listing of the legal entities  that insure or administer group HMO, dental HMO, and other products or services in your state). Accidental Injury, Critical Illness, and Hospital Care plans or insurance policies are distributed exclusively by or through operating subsidiaries of Cigna Corporation, are administered by Cigna Health and Life Insurance Company, and are insured by either (i) Cigna Health and Life Insurance Company (Bloomfield, CT); (ii) Life Insurance Company of North America (“LINA”) (Philadelphia, PA); or (iii) New York Life Group Insurance Company of NY (“NYLGICNY”) (New York, NY), formerly known as Cigna Life Insurance Company of New York. The Cigna name, logo, and other Cigna marks are owned by Cigna Intellectual Property, Inc. LINA and NYLGICNY are not affiliates of Cigna.

All insurance policies and group benefit plans contain exclusions and limitations. For availability, costs and complete details of coverage, contact a licensed agent or Cigna sales representative. This website is not intended for residents of New Mexico.

Selecting these links will take you away from Cigna.com to another website, which may be a non-Cigna website. Cigna may not control the content or links of non-Cigna websites. Details