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Azithromycin is a member of macrolides that are a class of antibiotics with a cyclic structure with a lactone ring and sugar moieties. Macrolides can inhibit CYP3A4 by a mechanism called mechanism-based inhibition (MBI), which involves the formation of reactive metabolites that bind covalently and irreversibly to the enzyme, rendering it inactive.
AUC it is a measure of the drug exposure in the body over time. By inhibiting CYP3A4, macrolide antibitiotics, such as erythromycin and clarithromycin, but not azithromycin, can significantly increase the AUC of the drugs that depend on it for clearance, which can lead to higher risk of adverse effects or drug-drug interactions. Azithromycin ...
Azalides such as azithromycin are a class of macrolide antibiotics that were originally manufactured in response to the poor acid stability exhibited by original macrolides (erythromycin). [1] Following the clinical overuse of macrolides and azalides, ketolides have been developed to combat surfacing macrolide-azalide resistance among ...
Macrolides(Bs) Azithromycin: Zithromax, Sumamed, Xithrone: Streptococcal infections, syphilis, upper respiratory tract infections, lower respiratory tract infections, mycoplasmal infections, Lyme disease: Nausea, vomiting, and diarrhea (especially at higher doses) Prolonged cardiac QT interval (especially erythromycin)
Macrolide (erythromycin, azithromycin) Topical Clindamycin. Topical Erythromycin. Hazal Ak/istockphoto. Non-Antibiotic Oral Medications. Prescription medications that are not classified as ...
(For instance, vancomycin, a glycopeptide antibiotic, [6] and erythromycin, [7] a macrolide antibiotic produced by Saccharopolyspora erythraea, along with its synthetic derivatives clarithromycin and azithromycin, all share the suffixes but have notably different mechanisms of action.)
Complete syntheses of erythromycins’ related structures and precursors such as 6-deoxyerythronolide B have been accomplished, giving way to possible syntheses of different erythromycins and other macrolide antimicrobials. [44] Woodward successfully completed the synthesis of erythromycin A, which was published in 1981. [45] [46] [47]
According to a recent study comparing the action of the classic macrolides erythromycin and azithromycin with ketolides, which are used to treat serious infections, the more powerful drugs (ketolides) were the more "leaky" in blocking the production of proteins. The researchers were surprised to discover that ketolides, which are known to be ...