PHARM Flashcards
IF VD= 1 …
DRUG HAS WIDE DISTRIBUTION
OPTIMUM DOSAGE REGIMEN SHOULD BE
ABOVE MINIMUM EFFECTIVE
BELOW MINIMUM TOXIC
ALKALINIZATION OF URINE BY SODIUM BICARBONATE ENHANCES SECRETION OF
WEAK ACIDIC DRUGS SUCH AS ASPIRIN OR PHENOBARBITOL
PROBLEMS WITH ACTIVE TUBULAR SECRETION
ACIDS COMPETE WITH ACIDS
BASES COMPETE WITH BASES
SATURATION CAN OCCUR
FACTORS EFFECTING RENAL EXCRETION
LIVER DZ, KIDNEY DZ, AGE, URINE PH MODIFIERS, FLUID THERAPY, DIURETICS, PLASMA PROTEIN BINDING, DOSE, RATE OF ABSORPTION
EXAMPLES OF DIURETICS
FUROSEMIDE
MANNITOL
WHAT DRUGS REQUIRE ACTIVE TUBULAR SECRETION?
CHOLINE, DOPAMINE, NICOTINE, CIMETIDINE, PROCAINAMIDE
GRAPEFRUIT JUICE IS AN
ENZYME INHIBITOR
WHEN SHOULD YOU GIVE AN ENZYME INHIBITOR?
TO PREVENT LETHAL SYNTHESIS/ TOXICITY
DISTRIBUTION AND STORAGE DISEASES ____ BIOTRANSFORMATION
DECREASE
FLUID THERAPY AND DIURETICS WILL
INCREASE GLOMERULAR FILTRATION RATE
INCREASE EXCRETION
ACIDIFICATION OF URINE BY AMMONIUM CHLORIDE OR METHIONINE ENHANCES RENAL SECRETION OF
WEAK BASES
SUCH AS AMPHETAMINE
FACTORS ALTERRING BIOTRANSFORMATION
SPECIES INDIVIDUAL ROUTE OF ADMINISTRATION ENZYME INDUCES ENZYME INHIBITORS LIVER DISEASE
ACTIVE TUBULAR SECRETION REQUIRES _____. IT OCCURS IN THE ____.
ENERGY
PROXIMAL CONVOLUTED TUBULE
WHAT ORGAN IS THE MAIN SITE OF BIOTRANSFORMATION?
LIVER
THERAPUETIC INDEX =
LD50/ ED50
LARGER VALUE =SAFER