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Since 2019, National Centralized Volume-Based Procurement uses "passes generic-consistency evalulation" as one of the bidding criteria. [7] The Chinese definition of "bioequivalence" entails having the test drug's geometric mean C max, AUC (0–t), and AUC (0–∞) fall into 80%–125% of the reference drug in both fasting and fed states. The ...
To ensure that the drug taker who has poor absorption is dosed appropriately, the bottom value of the deviation range is employed to represent real bioavailability and to calculate the drug dose needed for the drug taker to achieve systemic concentrations similar to the intravenous formulation. [4]
The concept of selectivity is used to quantify the extent to which one chemical substance, A, binds each of two other chemical substances, B and C. The simplest case is where the complexes formed have 1:1 stoichiometry. Then, the two interactions may be characterized by equilibrium constants K AB and K AC.
Based on one definition, a drug-like molecule has a logarithm of partition coefficient (log P) between −0.4 and 5.6, molecular weight 160–480 g/mol, molar refractivity of 40–130, which is related to the volume and molecular weight of the molecule and has 20–70 atoms.
If the drug distributes into all body water the volume of distribution would increase to approximately = 0.57 L/kg [8] If the drug readily diffuses into the body fat the volume of distribution may increase dramatically, an example is chloroquine which has a V D = {\displaystyle V_{D}=} 250-302 L/kg [ 9 ]
A new trend gaining popularity among people trying to lose weight is microdosing the diabetes medication Ozempic. Experts weigh the pros and cons of the practice.
The AUC (from zero to infinity) represents the total drug exposure across time. AUC is a useful metric when trying to determine whether two formulations of the same dose (for example a capsule and a tablet) result in equal amounts of tissue or plasma exposure. Another use is in the therapeutic drug monitoring of drugs with a narrow therapeutic ...
GMP said a further 13 arrests have been made as part of investigations into four shootings in the Oldham area between 25 October and 8 December, with officers also seizing a shotgun and drugs.