Tigecycline
Tigecycline is the first commercially available antibiotic of the glycylcycline class, which are a new family based on tetracyclines, but with molecular modifications to evade some, but not all, tetracycline resistance mechanisms. [1] Tetracycline resistance... [2]
Its labeled indications are:[3]
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Mechanism of action
The drug evades the Tet(A-E) efflux pumps[4] which account for most acquired resistance to tetracycline and minocycline in Enterobacteriaceae and Acinetobacter spp.; also the Tet(K) pumps, which occur widely in staphylococci conferring resistance to tetracycline though not minocycline or doxycycline.[2] It binds to bacterial ribosomes that have been modified by the Tet(M) protein,[4] a mechanism that compromises all available tetracyclines, and which is frequent in Gram-positive cocci and Neisseriae spp.[5]
Administration
It is given intravenously, but should not be administered simultaneously, through common tubing, with amphotericin B, chlorpromazine, methylprednisolone, or voriconazole.
References
- ↑ David M. Livermore (2005), "Tigecycline: what is it, and where should it be used?", Journal of Antimicrobial Chemotherapy 56 (4): 611-614, DOI:10.1093/jac/dki291
- ↑ 2.0 2.1 Chopra I (1986), "Genetic and biochemical basis of tetracycline resistance", J Antimicrob Chemother 18 (Suppl C): 51–6
- ↑ Tigecycline IV, American Society of Health-System Pharmacists
- ↑ 4.0 4.1 Petersen PJ, Jacobus NV, Weiss WJ et al (1999), "In vitro and in vivo antibacterial activities of a novel glycylcycline, the 9-t-butylglycylamido derivative of minocycline (GAR-936)", Antimicrob Agents Chemother 43: 738–44
- ↑ Milatovic D, Schmitz FJ, Verhoef J et al. (2003), "Activities of the glycylcycline tigecycline (GAR-936) against 1,924 recent European clinical bacterial isolates.", Antimicrob Agents Chemother 47: 400–4