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| http://linked.open...gbank/description
| - Clarithromycin, a semisynthetic macrolide antibiotic derived from erythromycin, inhibits bacterial protein synthesis by binding to the bacterial 50S ribosomal subunit. Binding inhibits peptidyl transferase activity and interferes with amino acid translocation during the translation and protein assembly process. Clarithromycin may be bacteriostatic or bactericidal depending on the organism and drug concentration. (en)
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| http://linked.open...y/drugbank/dosage
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| http://linked.open...generalReferences
| - # Malhotra-Kumar S, Lammens C, Coenen S, Van Herck K, Goossens H: Effect of azithromycin and clarithromycin therapy on pharyngeal carriage of macrolide-resistant streptococci in healthy volunteers: a randomised, double-blind, placebo-controlled study. Lancet. 2007 Feb 10;369(9560):482-90. "Pubmed":http://www.ncbi.nlm.nih.gov/pubmed/17292768 # Zuckerman JM, Qamar F, Bono BR: Macrolides, ketolides, and glycylcyclines: azithromycin, clarithromycin, telithromycin, tigecycline. Infect Dis Clin North Am. 2009 Dec;23(4):997-1026, ix-x. "Pubmed":http://www.ncbi.nlm.nih.gov/pubmed/19909895 # Piscitelli SC, Danziger LH, Rodvold KA: Clarithromycin and azithromycin: new macrolide antibiotics. Clin Pharm. 1992 Feb;11(2):137-52. "Pubmed":http://www.ncbi.nlm.nih.gov/pubmed/1312921 # Peters DH, Clissold SP: Clarithromycin. A review of its antimicrobial activity, pharmacokinetic properties and therapeutic potential. Drugs. 1992 Jul;44(1):117-64. "Pubmed":http://www.ncbi.nlm.nih.gov/pubmed/1379907 # Clarithromycin. Tuberculosis (Edinb). 2008 Mar;88(2):92-5. "Pubmed":http://www.ncbi.nlm.nih.gov/pubmed/18486039 # Stephenson GA, Stowell JG, Toma PH, Pfeiffer RR, Byrn SR: Solid-state investigations of erythromycin A dihydrate: structure, NMR spectroscopy, and hygroscopicity. J Pharm Sci. 1997 Nov;86(11):1239-44. "Pubmed":http://www.ncbi.nlm.nih.gov/pubmed/9383733 (en)
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| http://linked.open...gy/drugbank/group
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| http://linked.open...drugbank/halfLife
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| http://linked.open...ugbank/indication
| - An alternative medication for the treatment of acute otitis media caused by <i>H. influenzae, M. catarrhalis, or S. pneumoniae</i> in patients with a history of type I penicillin hypersensitivity. Also for the treatment of pharyngitis and tonsillitis caused by susceptible <i>Streptococcus pyogenes</i>, as well as respiratory tract infections including acute maxillary sinusitis, acute bacterial exacerbations of chronic bronchitis, mild to moderate community-acquired pneuomia, Legionnaires' disease, and pertussis. Other indications include treatment of uncomplicated skin or skin structure infections, helicobacter pylori infection, duodenal ulcer disease, bartonella infections, early Lyme disease, and encephalitis caused by <i>Toxoplasma gondii</i> (in HIV infected patients in conjunction with pyrimethamine). Clarithromycin may also decrease the incidence of cryptosporidiosis, prevent the occurence of α-hemolytic (viridans group) streptococcal endocarditis, as well as serve as a primary prevention for <i>Mycobacterium avium</i> complex (MAC) bacteremia or disseminated infections (in adults, adolescents, and children with advanced HIV infection). (en)
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| http://linked.open...mechanismOfAction
| - Clarithromycin is first metabolized to 14-OH clarithromycin, which is active and works synergistically with its parent compound. Like other macrolides, it then penetrates bacteria cell wall and reversibly binds to domain V of the 23S ribosomal RNA of the 50S subunit of the bacterial ribosome, blocking translocation of aminoacyl transfer-RNA and polypeptide synthesis. Clarithromycin also inhibits the hepatic microsomal CYP3A4 isoenzyme and P-glycoprotein, an energy-dependent drug efflux pump. (en)
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| http://linked.open...drugbank/packager
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| http://linked.open...y/drugbank/patent
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| http://linked.open...outeOfElimination
| - After a 250 mg tablet every 12 hours, approximately 20% of the dose is excreted in the urine as clarithromycin, while after a 500 mg tablet every 12 hours, the urinary excretion of clarithromycin is somewhat greater, approximately 30%. (en)
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| http://linked.open.../drugbank/synonym
| - CLARITHROMYCIN (en)
- Clarithromycine (en)
- 6-O-Methylerythromycin (en)
- 6-O-Methylerythromycin a (en)
- 6-O-methyl erythromycin (en)
- CLA (en)
- Clarithromycina (en)
- Clarithromycinum (en)
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| http://linked.open...drugbank/toxicity
| - Symptoms of toxicity include diarrhea, nausea, abnormal taste, dyspepsia, and abdominal discomfort. Transient hearing loss with high doses has been observed. Pseudomembraneous colitis has been reported with clarithromycin use. Allergic reactions ranging from urticaria and mild skin eruptions to rare cases of anaphylaxis and Stevens-Johnson syndrome have also occurred. Rare cases of severe hepatic dysfunctions also have been reported. Hepatic failure is usually reversible, but fatalities have been reported. Clarithromycin may also cause tooth decolouration which may be removed by dental cleaning. Fetal abnormalities, such as cardiovascular defects, cleft palate and fetal growth retardation, have been observed in animals. Clarithromycin may cause QT prolongation. (en)
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| http://linked.open.../drug/hasAHFSCode
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| http://linked.open...k/foodInteraction
| - Biaxin - take without regard to meals (however absorption appears to be improved when drug is taken with food). (en)
- Biaxin XL - take with a meal, taking it on an empty stomach is associated with total product exposure 30% inferior to that observed when administered with food. (en)
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