. . . . "Daptomycin is excreted primarily by the kidney.\u00C2 In a mass balance study of 5 healthy subjects using radiolabeled daptomycin, approximately 78% of the administered dose was recovered from urine based on total radioactivity (approximately 52% of the dose based on microbiologically active concentrations) and 5.7% of the dose was recovered from feces (collected for up to 9 days) based on total radioactivity. Because renal excretion is the primary route of elimination, dosage adjustment is necessary in patients with severe renal insufficiency (CLCR <30 mL/min)"@en . . . . . "approved"@en . "Generally exhibits linear and time-independent pharmacokinetics at a dosage of 4\u201312 mg/kg IV once every 24 hours. Steady-state trough serum concentrations are achieved by the third daily dose."@en . . "Daptomycin is a lipopeptide antibiotic that kills susceptible gram positive bacteria by disrupting their membrane potential. It is a naturally-occurring compound found in the soil bacterium Streptomyces roseosporus. Antibiotics are used in the treatment of infections caused by bacteria. They work by killing bacteria or preventing their growth. Daptomycin will not work for colds, flu, or other virus infections. It was approved in September 2003 for the treatment of complicated skin and soft tissue infections. It has a safety profile similar to other agents commonly administered to treat gram-positive infections."@en . . . . . "Excreted primarily in the urine as unchanged drug (78%) and in the feces (6%)"@en . . . "investigational"@en . . . . "Enteric bacteria and other eubacteria"@en . . . "103060-53-3"@en . . . "* 0.1 L/Kg [healthy adult subjects]"@en . "Daptomycin is reversibly bound to human plasma proteins, primarily to serum albumin, in a concentration-independent manner. The overall mean binding ranged from 90 to 93%."@en . "Dennis Keith, \"Methods for preparing purified daptomycin.\" U.S. Patent US20030045484, issued March 06, 2003."@en . "Half-life elimination: 8-9 hours (up to 28 hours in renal impairment) "@en . . "# Woodworth JR, Nyhart EH Jr, Brier GL, Wolny JD, Black HR: Single-dose pharmacokinetics and antibacterial activity of daptomycin, a new lipopeptide antibiotic, in healthy volunteers. Antimicrob Agents Chemother. 1992 Feb;36(2):318-25. \"Pubmed\":http://www.ncbi.nlm.nih.gov/pubmed/1318678 # Tally FP, DeBruin MF: Development of daptomycin for gram-positive infections. J Antimicrob Chemother. 2000 Oct;46(4):523-6. \"Pubmed\":http://www.ncbi.nlm.nih.gov/pubmed/11020247 # Charles PG, Grayson ML: The dearth of new antibiotic development: why we should be worried and what we can do about it. Med J Aust. 2004 Nov 15;181(10):549-53. \"Pubmed\":http://www.ncbi.nlm.nih.gov/pubmed/15540967 # Fowler VG Jr, Boucher HW, Corey GR, Abrutyn E, Karchmer AW, Rupp ME, Levine DP, Chambers HF, Tally FP, Vigliani GA, Cabell CH, Link AS, DeMeyer I, Filler SG, Zervos M, Cook P, Parsonnet J, Bernstein JM, Price CS, Forrest GN, Fatkenheuer G, Gareca M, Rehm SJ, Brodt HR, Tice A, Cosgrove SE: Daptomycin versus standard therapy for bacteremia and endocarditis caused by Staphylococcus aureus. N Engl J Med. 2006 Aug 17;355(7):653-65. \"Pubmed\":http://www.ncbi.nlm.nih.gov/pubmed/16914701 # Lee SY, Fan HW, Kuti JL, Nicolau DP: Update on daptomycin: the first approved lipopeptide antibiotic. Expert Opin Pharmacother. 2006 Jul;7(10):1381-97. \"Pubmed\":http://www.ncbi.nlm.nih.gov/pubmed/16805723 # http://www.google.com/patents/WO2002059322A2?cl=en #Lexicomp #Dynamed"@en . . "For the treatment of complicated skin and skin structure infections caused by susceptible strains of Gram-positive microorganisms."@en . . "Daptomycin appears to bind or insert into the outer membrane of gram positive bacteria. The binding and integration of daptomycin into the cell membrane is calcium dependent. Calcium ions cause a conformational change in daptomycin, augmenting its amphipathicity (hydrophilic head group and hydrophobic tail group), leading to incorporation into the cell membrane. This binding causes rapid depolarisation, resulting in a loss of membrane potential leading to inhibition of protein, DNA and RNA synthesis, which results in bacterial cell death. The bactericidal activity of daptomycin is concentration-dependent. There is in vitro evidence of synergy with \u03B2-lactam antibiotics. "@en . . . . . "Daptomycin"@en .