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erythromycin

erythromycin
  • Restricted Medications Oral suspensions restricted to patients being admitted or already admitted.
Drug Name Form Strength Non-Formulary Restricted TX Sub Notes
Ery-Tab DELAYED RELEASE TABLET, ORAL 250 mg      
Erythrocin Lactobionate POWDER FOR INJECTION, INJECTABLE lactobionate 500 mg      
Erythromycin ES SUSPENSION, ORAL 200 mg/2 mL      
Display Erythromycins Class : 08121204
Medication comments:
Per policy, use of these medications is restricted as noted below:  
generic (Brand) Restrictions
erythromycin (Erythromycin ES) Oral suspensions restricted to patients being admitted or already admitted.
Per policy, orders for these non-formulary agents will be changed to formulary equivalents.  
Non-Formulary Agent Formulary Equivalent
erythromycin (Ery-Tab) 333 mg erythromycin (E-Mycin) 250 mg q6h
erythromycin besides Ery-Tab 333 mg (PCE, stearate, Eryc) erythromycin Base Enteric Coated
Pediatric Pharmacy Association 2025 KIDs List of Key Potentially Inappropriate Drugs in Pediatrics 
Medication: erythromycin (EES, Ilotycin)
Key Potentially Inappropriate Drugs in Pediatrics (KIDs) List: Second Edition (Table 1)
Drug macrolides
Risk/Rationale Hypertrophic pyloric stenosis (risk greater for erythromycin > azithromycin)
Recommendation Avoid in younger than 1 mo except for Bordetella pertussis (azithromycin) or Chlamydia trachomatis pneumonia (azithromycin and erythromycin).
Caution in younger than 1 mo for Ureaplasma (azithromycin)
 Quality of evidence: High, Strength of Recommendation: Strong
Last updated: Dec. 29, 2025
UpToDate Lexidrug

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Director of Pharmacy - Randi Raynor, PharmD: ext 4501
Clinical Coordinator - Laura Rollings, PharmD: ext 4597
Pharmacy Informaticist - Stephen Pringle, PharmD: ext 7645
Pharmacy Technician Supervisor - Amy Wingler, CPhT: ext 7385
Pharmacy Automation Coordinator (Omnicell) - Melissa Fulford, CPhT: ext 3556



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