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EryPed Patient Information Including Side Effects

Brand Names: E.E.S. Granules, E.E.S.-200, E.E.S.-400, E.E.S.-400 Filmtab, Eryc, EryPed, EryPed 200, EryPed 400, Ery-Tab, Erythrocin Stearate Filmtab, PCE Dispertab

Generic Name: erythromycin (Pronunciation: er ITH roe MYE sin)

What is erythromycin (EryPed)?

Erythromycin is a macrolide antibiotic. Erythromycin fights bacteria in the body.

Erythromycin is used to treat many different types of infections caused by bacteria.

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


oval, pink, imprinted with a EE

E-Mycin 250 mg

round, orange, imprinted with E-MYCIN 250mg

E-Mycin 333 mg

round, white, imprinted with E-MYCIN 333mg

Ery-Tab 250 mg

oval, white, imprinted with EC, a

Ery-Tab 333 mg

oval, white, imprinted with a EH, a

Ery-Tab 500 mg

oval, pink, imprinted with a ED

Erythrocin 500 mg

oval, pink, imprinted with a, ET

Erythromycin Base 250 mg

oval, pink, imprinted with a EB, EB

Erythromycin Base 500 mg

oval, pink, imprinted with a, EA

Erythromycin Ethylsuccinate 400 mg-ABB

oval, pink, imprinted with 74 ZE

Erythromycin Ethylsuccinate 400 mg-MYL

oblong, peach, imprinted with M400

PCE 500 mg

oval, white, imprinted with a EK

What are the possible side effects of erythromycin?

Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Call your doctor at once if you have a serious side effect such as:

  • severe dizziness, fainting, fast or pounding heartbeats;
  • diarrhea that is watery or bloody;
  • hearing problems;
  • vomiting or fussiness after eating (in a child taking erythromycin);
  • nausea, upper stomach pain, itching, loss of appetite, dark urine, clay-colored stools, jaundice (yellowing of the skin or eyes); or
  • severe skin reaction -- fever, sore throat, swelling in your face or tongue, burning in your eyes, skin pain, followed by a red or purple skin rash that spreads (especially in the face or upper body) and causes blistering and peeling.

Less serious side effects may include:

  • mild nausea, vomiting, diarrhea, or stomach pain;
  • dizziness, headache, feeling tired;
  • vaginal itching or discharge; or
  • mild itching or skin rash.

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.

Read the EryPed (erythromycin ethylsuccinate) Side Effects Center for a complete guide to possible side effects

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

You should not take erythromycin if you are allergic to it, or if you are also using cisapride (Propulsid), dihydroergotamine (D.H.E. 45, Migranal), ergotamine (Ergomar, Cafergot, Migergot), or pimozide (Orap). Erythromycin may interact with these medicines and could cause dangerous or life-threatening heart rhythm disorders.

Before you take erythromycin, tell your doctor if you have liver disease, myasthenia gravis, a heart rhythm disorder, a history of Long QT syndrome, or low levels of potassium or magnesium in your blood.

Take this medicine for the full prescribed length of time. Your symptoms may improve before the infection is completely cleared. Skipping doses may also increase your risk of further infection that is resistant to antibiotics. Erythromycin will not treat a viral infection such as the common cold or flu.

Antibiotic medicines can cause diarrhea, which may be a sign of a new infection. If you have diarrhea that is watery or bloody, stop taking erythromycin and call your doctor. Do not use anti-diarrhea medicine unless your doctor tells you to.

EryPed - User Reviews

EryPed User Reviews

Now you can gain knowledge and insight about a drug treatment with Patient Discussions.

Here is a collection of user reviews for the medication EryPed sorted by most helpful. Patient Discussions FAQs

Report Problems to the Food and Drug Administration


You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.

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