The degree of ionization of drugs is altered in fetal blood. Weak bases that have a pKa that is higher than physiological pH (e.g. local anaesthetics) will be more ionized at the lower pH of the fetus. This can lead to the phenomenon of ion trapping, whereby ionized drug in fetal capillary blood is unable to go back across the placenta.
APCI atmospheric pressure chemical ionization. BSTFA. N,O-bis trimethylsilylfluoroacetamide. CI chemical ionization. DFC drug-facilitated crime.
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
Most drugs are weak acids or bases that are present in solution as both the ionized and unionized forms. Ionized molecules are usually unable to penetrate lipid
A pH-dependent solubility is exhibited by ionizable drugs, wherein weakly acidic drugs are more soluble at pH pKa. (ionization constant)and weakly basic drugs
Unionized form of the drug is more lipid soluble than ionized form c. Extent of drug ionization plays important role both in drug absorption and
by S He 2024 Cited by 9Generally, poorly water-soluble drugs are weakly ionizable drugs drug by increasing the concentration of ionized drug in the solution.
Must drugs exisit in 2 forms: ionized and nonionized. Lije electrolites (Na and Cl-), ionized drugs are _____ because their atomic structure has lost or gained electrons.
by T Uhlemann 2024 Cited by 14We study the protonation preferences of sulfa drugs upon electrospray ionization (ESI) using IR action spectroscopy of the ionized gas-phase molecules in a
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