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For example, gentamicin is an antibiotic that can be nephrotoxic (kidney damaging) and ototoxic (hearing damaging); measurement of gentamicin through concentrations in a patient's plasma and calculation of the AUC is used to guide the dosage of this drug. [3] AUC becomes useful for knowing the average concentration over a time interval, AUC/t.
Vancomycin is a glycopeptide antibiotic medication used to treat certain bacterial infections. [7] It is administered intravenously ( injection into a vein ) to treat complicated skin infections , bloodstream infections , endocarditis , bone and joint infections, and meningitis caused by methicillin-resistant Staphylococcus aureus . [ 8 ]
It is possible to calculate the amount of a drug in the blood plasma that has a real potential to bring about its effect using the formula: D e = B ⋅ D a {\displaystyle De=B\cdot Da\,} where De is the effective dose , B bioavailability and Da the administered dose.
Glycopeptide antibiotics are a class of drugs of microbial origin that are composed of glycosylated cyclic or polycyclic nonribosomal peptides.Significant glycopeptide antibiotics include the anti-infective antibiotics vancomycin, teicoplanin, telavancin, ramoplanin, avoparcin and decaplanin, corbomycin, complestatin and the antitumor antibiotic bleomycin.
The absorption rate constant K a is a value used in pharmacokinetics to describe the rate at which a drug enters into the system. It is expressed in units of time −1. [1] The K a is related to the absorption half-life (t 1/2a) per the following equation: K a = ln(2) / t 1/2a.
Dalbavancin is considered a long-lasting antibiotic due to its prolonged half-life (14.4 d), high protein binding capacity, and intense tissue penetration.It binds reversibly to plasma proteins at approximately 93%, allowing for sustained drug concentrations over time.
In pharmacology, the volume of distribution (V D, also known as apparent volume of distribution, literally, volume of dilution [1]) is the theoretical volume that would be necessary to contain the total amount of an administered drug at the same concentration that it is observed in the blood plasma. [2]
Telavancin is a semi-synthetic derivative of vancomycin. [1] [2] The FDA approved the drug in September 2009 for complicated skin and skin structure infections (cSSSI), [3] and in June 2013 for hospital-acquired and ventilator-associated bacterial pneumonia caused by Staphylococcus aureus. [4]