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Dicloxacillin is a narrow-spectrum β-lactam antibiotic of the penicillin class. [1] It is used to treat infections caused by susceptible (non-resistant) Gram-positive bacteria . [ 1 ] It is active against beta-lactamase -producing organisms such as Staphylococcus aureus , which would otherwise be resistant to most penicillins .
The production of a β-lactamase by a bacterium does not necessarily rule out all treatment options with β-lactam antibiotics. In some instances, β-lactam antibiotics may be co-administered with a β-lactamase inhibitor. For example, Augmentin (FGP) is made of amoxicillin (a β-lactam antibiotic) and clavulanic acid (a β-lactamase inhibitor).
The two types of beta-lactamases work on the basis of the two basic mechanisms of opening the β-lactam ring. [2] The SBLs are similar in structure and mechanistically to the β-lactam target penicillin-binding proteins (PBPs) which are necessary for cell wall building and modifying. SBLs and PBPs both covalently change an active site serine ...
Cloxacillin is used against staphylococci that produce beta-lactamase, due to its large R chain, which does not allow the beta-lactamases to bind. This drug has a weaker antibacterial activity than benzylpenicillin , and is devoid of serious toxicity except for allergic reactions.
Members of the isoxazolyl penicillin family, which includes cloxacillin, dicloxacillin, and oxacillin, were synthesized to counter the increasing prevalence of infections caused by penicillin-resistant Staphylococcus aureus. While methicillin could only be administered via injection, the isoxazolyl penicillins, including oxacillin, could be ...
Flucloxacillin has similar pharmacokinetics, antibacterial activity, and indications to dicloxacillin, and the two agents are considered interchangeable. It is reported to have higher, though rare, incidence of severe hepatic adverse effects than dicloxacillin, [ 28 ] but a lower incidence of renal adverse effects.
Avibactam is a non-β-lactam β-lactamase inhibitor [2] developed by Actavis (now Teva) jointly with AstraZeneca.A new drug application for avibactam in combination with ceftazidime was approved by the FDA in 2015 for treating complicated urinary tract (cUTI) and complicated intra-abdominal infections (cIAI) caused by antibiotic-resistant pathogens, including those caused by multidrug ...
Ampicillin/flucloxacillin also known as co-fluampicil (), and sold under the tradename Magnapen, is a combination drug of the two β-lactam antibiotics, ampicillin and flucloxacillin, both in equal amounts, available in a capsule and as a liquid, both taken by mouth, and as a formulation which can be given by injection into muscle or vein.