Comparative Pharmacology
Head-to-head clinical analysis: DYNABAC versus ERYTHROMYCIN.
Peer-Reviewed Evidence
Head-to-head clinical analysis: DYNABAC versus ERYTHROMYCIN.
DYNABAC vs ERYTHROMYCIN
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Dirithromycin is a macrolide antibiotic that binds to the 50S subunit of the bacterial ribosome, specifically to the 23S rRNA, inhibiting peptide chain elongation by blocking the translocation step. It also interferes with the assembly of the 50S ribosomal subunit. This action is primarily bacteriostatic but can be bactericidal at higher concentrations.
Binds to the 50S ribosomal subunit, inhibiting bacterial protein synthesis by blocking the translocation step.
500 mg orally once daily or 250 mg orally twice daily; usual duration 5-14 days depending on infection
250-500 mg orally every 6 hours or 500-1000 mg intravenously every 6 hours; maximum 4 g/day.
None Documented
None Documented
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 elimination half-life is 9–12 hours in adults with normal renal function; may extend to 20–30 hours in severe renal impairment (CrCl <30 mL/min).
Terminal half-life is 1.4-2 hours in adults with normal renal function; may be prolonged to 5-6 hours in anuria.
Approximately 65% of a dose is excreted unchanged in the urine via glomerular filtration and tubular secretion; about 15% is excreted unchanged in the bile; fecal elimination accounts for <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."