Drug Ionization Pharmacology Toxicology University of Toronto Pharmacokinetics
How does ionization constant affect the bioavailability of drugs. Ionized drugs are not absorbed as efficiently as un-ionized drugs are. New cards. 6. How
by P Akula 2024 Cited by 52drugs; Weakly basic drugs; pH solubility; Distribution coefficient; Ionization drug and an in increase in the percentage of ionized drug. The
If the concentration of ionized drug [A¯ ] is equal to concentration of Acidic drugs are ionized more in alkaline urinedo not back diffuse in the
-only partially ionized in solution unlike strong acids and bases that are completely ionized-degree of ionization is highly dependent on the pH of the environment (and the pKa of the drug) exception: steroids and quaternary amounium compounds-completely ionizes at all pH values-behave in this respect as strong electrolytes
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drug ionization and absorption. Basic drugs, which are typically ionized in the acidic environment of the stomach (pH around 1.5 to 3.5), can
Drugs with a pKa close to the pH of the gastrointestinal tract are more likely to be absorbed, as they can exist in both ionized and non-ionized
Thus, alkaline urine promotes ionization and reduces the amount of non-ionizing drug available for reabsorption. The drug is retained in the urine and its
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