Comparative Pharmacology
Head-to-head clinical analysis: ERYC versus ERYTHROMYCIN.
Peer-Reviewed Evidence
Head-to-head clinical analysis: ERYC versus ERYTHROMYCIN.
ERYC vs ERYTHROMYCIN
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Erythromycin acts by binding to the 50S ribosomal subunit of susceptible bacteria, inhibiting protein synthesis by blocking the translocation step.
Binds to the 50S ribosomal subunit, inhibiting bacterial protein synthesis by blocking the translocation step.
250-500 mg orally every 6 hours or 333-500 mg orally every 8 hours; maximum 4 g/day.
250-500 mg orally every 6 hours or 500-1000 mg intravenously every 6 hours; maximum 4 g/day.
None Documented
None Documented
2–4 hours in adults with normal renal function; prolonged to 4–8 hours in severe hepatic impairment; does not significantly change in renal failure.
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
Terminal half-life is 1.4-2 hours in adults with normal renal function; may be prolonged to 5-6 hours in anuria.
Primarily biliary excretion of unchanged drug (60–80%); renal excretion accounts for 10–15% of an oral dose, with minimal fecal elimination (<5%).
Primarily hepatic (biliary) elimination; approximately 2-5% excreted unchanged in urine, 30-60% excreted in feces via bile.
Category C
Category A/B
Macrolide Antibiotic
Macrolide Antibiotic
"Erythromycin may increase the QTc-prolonging activities of Indapamide."