erythromycin, Eryc, Ery-Tab, E.E.S, Eryped, PCE, (E-Mycin, Ilosone, and Pediazole are discontinued)

  • Pharmacy Author:
    Omudhome Ogbru, PharmD

    Dr. Ogbru received his Doctorate in Pharmacy from the University of the Pacific School of Pharmacy in 1995. He completed a Pharmacy Practice Residency at the University of Arizona/University Medical Center in 1996. He was a Professor of Pharmacy Practice and a Regional Clerkship Coordinator for the University of the Pacific School of Pharmacy from 1996-99.

  • Medical and Pharmacy Editor: Jay W. Marks, MD
    Jay W. Marks, MD

    Jay W. Marks, MD

    Jay W. Marks, MD, is a board-certified internist and gastroenterologist. He graduated from Yale University School of Medicine and trained in internal medicine and gastroenterology at UCLA/Cedars-Sinai Medical Center in Los Angeles.

Just a Sore Throat or Strep Slideshow

GENERIC NAME: erythromycin

BRAND NAMES: Eryc, Ery-Tab, E.E.S, Eryped, PCE, (E-Mycin, Ilosone, and Pediazole are discontinued brands)

DRUG CLASS AND MECHANISM: Erythromycin is an antibiotic in the class of antibiotics known as macrolide antibiotics which also includes azithromycin (Zithromax, Zmax) and clarithromycin (Biaxin). It is used to treat several types of infections including upper/lower respiratory tract infections, skin infections, acute pelvic inflammatory disease, erythrasma, etc. caused by bacteria such as Streptococcus pyogenes, Streptococcus pneumoniae, Mycoplasma pneumoniae, Staphylococcus aureus, Neisseria gonorrhoeae, and many others. Erythromycin, like all macrolide antibiotics, prevents bacterial cells from growing and multiplying by interfering with their ability to make proteins while not affecting human cells. Bacteria such as Haemophilus influenzae are resistant to erythromycin alone and must be treated with a combination of erythromycin and adequate doses of sulfonamides. The FDA approved E.E.S in April 1965.

PRESCRIPTION: Yes

GENERIC AVAILABLE: Yes

PREPARATIONS: Tablets: Tablets: 250, 333, 400 and 500 mg. Suspension: 200 and, 400 mg/teaspoon. Tablet (Chewable): 200 mg. Powder: 100 mg/half-teaspoon and 200 mg/teaspoon. Granules: 200 and 400 mg/teaspoon. Powder for Injection: 500 mg and 1g.

STORAGE: Erythromycin should be stored at temperatures below 86 F (30 C). It is important to protect tablets from moisture and excessive heat.

Medically Reviewed by a Doctor on 11/24/2014
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