Azithromycin is a topic covered in the Johns Hopkins ABX Guide. To view the entire topic, please sign in or purchase a subscription. Official website of the Johns Hopkins Antibiotic (ABX), HIV, Diabetes, and Psychiatry Guides, powered by Unbound Medicine. Johns Hopkins Guide App for i OS, i Phone, i Pad, and Android included. Available from: https:// TY - ELEC T1 - Azithromycin ID - 540040 A1 - Pham, Paul, Pharm. Its molecular formula is C38H72N2O12, and its molecular weight is 749.00. Azithromycin has the following structural formula: Azithromycin is a bacteriostatic drug acts by inhibiting protein synthesis. It binds reversibly to 50S ribosomal subunits of sensitive microorganism. Azithromycin interferes with transpeptidation and translocation thus there is inhibition of protein synthesis and hence inhibition of cell growth. Azithromycin is rapidly absorbed after oral administration. burgdorferi, Mycoplasma pneumoniae, Escherichia coli, Salmonella, Shigella species and H. Azithromycin is contraindicated in patients with known hypersensitivity to azithromycin, erythromycin, any macrolide or ketolide antibiotic. Food does not interfere with absorption of tablet or suspension of azithromycin but of capsule is reduced. It may cause QTc Prolongation, so avoid in patients with known QT prolongation. Peak plasma concentrations occur 2 to 3 hours after an oral dose and 1 to 2 hours after intravenous dosage. avium-intracellulare, Toxoplasma gondii, Cryptosporidium, Plasmodium species, H. Side effects with azithromycin are less frequent ( Azithromycin is an erythromycin derivative and its lactone ring contains an extra nitogen which is methylated. These structural alterations improve acid stability and tissue penetration and widen the spectrum of activity. Prednisone warfarin Metformin 1500 Spectrum and mode of action of azithromycin CP-62,993, a new 15-membered-ring macrolide with improved potency against gram-negative organisms. ZITHROMAX azithromycin tablets and azithromycin for oral suspension. tablets containing azithromycin dihydrate equivalent to either 250 mg or 500 mg. Spectrum of Activity of Azithromycin. J. D. Williams. In recent years, a number of newer macrolides have been developed. One such anti- biotic is azithromycin. Azithromycin has relatively broad but shallow antibacterial activity. It inhibits some Gram-positive bacteria, some Gram-negative bacteria, and many atypical bacteria. A strain of gonorrhea reported to be highly resistant to azithromycin was found in the population in 2015. Neisseria gonorrhoeae is normally susceptible to azithromycin, Safety of the medication during breastfeeding is unclear. It has been reported that because only low levels are found in breastmilk and the medication has also been used in young children, it is unlikely that breastfed infants would suffer adverse effects. Most common adverse effects are diarrhea (5%), nausea (3%), abdominal pain (3%), and vomiting. Fewer than 1% of people stop taking the drug due to side effects. It is primarily used for the treatment of respiratory, enteric and genitourinary infections and may be used in preference to other macrolides for some sexually transmitted and enteric infections. Azithromycin has additional immunomodulatory effects and has been used in chronic respiratory inflammatory diseases for this purpose. Potential major adverse effects include cardiovascular arrhythmias and hearing loss. Macrolide resistance is also a problem, as are interactions with commonly prescribed drugs. and a long half-life due to extensive uptake in tissue, particularly lung, tonsil and prostate. Tissue concentrations exceed the minimum inhibitory concentration that would inhibit 90% of likely pathogens (MIC90) after a single 500 mg oral dose. Mean concentrations in tissue are 10–100-fold higher than those reached in serum and persist for several days. Azithromycin spectrum Azithromycin - an overview ScienceDirect Topics, ZITHROMAX ® azithromycin tablets - FDA Tadalafil cialis 20 mg Azithromycin is a bacteriostatic drug acts by inhibiting protein synthesis. improve acid stability and tissue penetration and widen the spectrum of activity. Antibiotic Drugs, Information, Description on Azithromycin.. Spectrum of activity of azithromycin - Springer Link. Azithromycin—review of key chemical, phannacokinetic and.. Jun 4, 2018. Azithromycin Zithromax and clarithromycin Biaxin are macrolide antibiotics. The spectrum of activity, mechanisms of action and resistance. Azithromycin. Antibiotic Class Macrolide. Antimicrobial Spectrum Staphylococcus aureus, Bacillus cereus, Bordetella pertussis, Chlamydia trachomatis. Jun 1, 2015. Azithromycin is a broad-spectrum macrolide antibiotic with a long half-life and excellent tissue penetration. It is primarily used for the treatment.