Comparative Pharmacology
Head-to-head clinical analysis: ERYTHROMYCIN versus PEDIAMYCIN.
Peer-Reviewed Evidence
Head-to-head clinical analysis: ERYTHROMYCIN versus PEDIAMYCIN.
ERYTHROMYCIN vs PEDIAMYCIN
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Binds to the 50S ribosomal subunit, inhibiting bacterial protein synthesis by blocking the translocation step.
Erythromycin is a macrolide antibiotic that binds to the 50S subunit of the bacterial ribosome, inhibiting protein synthesis by blocking translocation of peptidyl-tRNA. It may be bacteriostatic or bactericidal depending on concentration and organism.
250-500 mg orally every 6 hours or 500-1000 mg intravenously every 6 hours; maximum 4 g/day.
250-500 mg orally every 6 hours; maximum 2 g/day.
None Documented
None Documented
Terminal half-life is 1.4-2 hours in adults with normal renal function; may be prolonged to 5-6 hours in anuria.
Clinical Note
moderateErythromycin + Norfloxacin
"Erythromycin may increase the QTc-prolonging activities of Norfloxacin."
Clinical Note
moderateErythromycin + Teriflunomide
"The serum concentration of Teriflunomide can be increased when it is combined with Erythromycin."
Clinical Note
moderateErythromycin + Ibandronate
"Erythromycin may increase the QTc-prolonging activities of Ibandronate."
Clinical Note
moderateErythromycin + Indapamide
The terminal elimination half-life is approximately 1.5-2 hours in adults with normal renal function. In patients with severe hepatic impairment, half-life may be prolonged to 5-6 hours. The short half-life necessitates frequent dosing (every 6-8 hours) to maintain therapeutic levels.
Primarily hepatic (biliary) elimination; approximately 2-5% excreted unchanged in urine, 30-60% excreted in feces via bile.
PEDIAMYCIN (erythromycin ethylsuccinate) is primarily excreted via the biliary route (60-70% as unchanged drug and metabolites) with significant fecal elimination. Renal excretion accounts for only 5-15% of the dose, mostly as inactive metabolites. Less than 5% is excreted unchanged in urine.
Category A/B
Category C
Macrolide Antibiotic
Macrolide Antibiotic
"Erythromycin may increase the QTc-prolonging activities of Indapamide."