EryPed
Generic name:erythromycin ethylsuccinate
Dosage form: oral suspension
Drug class:Macrolides
Medically reviewed by Drugs.com. Last updated on Dec 22, 2021.
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Rx only
To reduce the development of drug-resistant bacteria and maintain the effectiveness of Ery-Ped and other antibacterial drugs, Ery-Ped should be used only to treat or prevent infections that are proven or strongly suspected to be caused by bacteria.
EryPed 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'-(ethyl succinate). The molecular formula is C43H75NO16 and the molecular weight is 862.06. The structural formula is:

Ery-Ped 200 (erythromycin ethylsuccinate for oral suspension) when reconstituted with water, forms a suspension containing erythromycin ethylsuccinate equivalent to 200 mg erythromycin per 5 mL (teaspoonful) or 100 mg per 2.5 mL (dropperful) with an appealing fruit flavor. Ery-Ped 400 when reconstituted with water, forms a suspension containing erythromycin ethylsuccinate equivalent to 400 mg of erythromycin per 5 mL (teaspoonful) with an appealing banana flavor.
These products are intended primarily for pediatric use but can also be used in adults.
Inactive Ingredients
Ery-Ped 200, Ery-Ped 400:
Caramel, polysorbate, sodium citrate, sucrose, xanthan gum and artificial flavors.
EryPed - Clinical Pharmacology
Orally administered erythromycin ethylsuccinate suspension is readily and reliably absorbed under both fasting and nonfasting conditions.
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-b...