The elimination rate constant of oral absorption data can be determined by .residual method
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45%
T
55%
F
😁14
Most two-compartment models assume that elimination occurs from the peripheral compartment because it contains the major sites of drug elimination...
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45%
T
55%
F
At the postabsorption phase the rate of drug absorption is faster than the rate of elimination
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35%
T
65%
F
❤1
Coadministering orange juice, colas, or other acidic beverages can facilitate the
absorption of some medication requiring .acidic enviroment
absorption of some medication requiring .acidic enviroment
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87%
T
13%
F
In edematous conditions, the total extracellular water decreases: this is reflected in a larger apparent VD value for adrug that is highly water soluble
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38%
T
62%
F
Drug product performance : is defined as the release of the drug substance from the drug product either for local drug action or for drug absorption into the plasma for systemic therapeutic activity
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90%
T
10%
F
❤1
A change in the crystal structure of the drug may cause cracking in a tablet or even
prevent granulation from being compressed .into a tablet
prevent granulation from being compressed .into a tablet
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88%
T
12%
F
The diffusion coefficient, D, is defined as the amount of a drug that diffuses across
a membrane of a given unit area per unit time when the concentration gradient is unity
a membrane of a given unit area per unit time when the concentration gradient is unity
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90%
T
10%
F
The nature and quantity of the diluent, binder disintegrant, lubricant and any wetting agent are important in the formulation of capsule dosage form
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39%
T
61%
F
In in vitro studies of dissolution kinetics, the agitation rate is about 50 rpm (revolutions per minute).
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15%
T
85%
F
Tablet coatings may be used for several reasons; all are true except:
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5%
mask unpleasant taste or odor
8%
improve the appearance of the tablet
11%
add company identity
76%
facilitate the dissolution of the tablet
is an-----
example of protein peptide drug generally
not given orally due to degradation and inadequate absorption in GIT
example of protein peptide drug generally
not given orally due to degradation and inadequate absorption in GIT
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7%
Nitroglycerin
3%
Fentanyl
87%
Insulin
3%
Cholestyramine
As the plasma drug concentration decreases during elimination, the rate of
elimination dDE/dt will----accordingly, but the clearance will be-----
elimination dDE/dt will----accordingly, but the clearance will be-----
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12%
increases, constant
62%
decreases, constant
17%
decreases, increased
9%
constant , decreases
Physiological factors affecting drug absorption in the gastrointestinal tract
include
include
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9%
Stability, pH profile & effect of food in GIT
2%
Effect of disease state & effect of food in GIT
88%
Gastro intestinal motility & perfusion through GIT, effect of disease state & effect of food in GIT
2%
Gastro intestinal motility & perfusion through GIT
Solubilization of aspirin may be increased by the addition of
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82%
alkaline buffer
2%
disintegrant
7%
grape fruit juice
8%
acidic buffer
All are effects of food on the bioavailability *:of a drug from drug product except
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12%
Increase in splanchnic blood flow
4%
A change in the pH of the GIT
77%
Alteration of normal GI flora
7%
Delay in gastric emptying
Factors that affect drug dissolution of a :solid oral dosage form include
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4%
Method of manufacture
3%
The nature of excipient
7%
Dissolution test conditions
85%
All of them