How many half-lives does it take for a drug to be eliminated from the body?
a. 1–2
b. 2–3
c. 4–5
d. 5–6
c. Half-life (t1/2) of elimination is the time it takes for the concentration of the drug in the blood to fall to half (50%) of its original value. It is an indicator of how long a drug will produce its effect in the body and defines the time interval between doses. It takes about 4–5-lives for a drug to be "considered" eliminated from the body. At this point, steady-state is reached.
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a. True b. False Indicate whether the statement is true or false