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The term half-life refers to the period in which the radioactivity or number of atoms of a radioactive substance decreases by half. The term can be applied to any substance whose quantity decreases exponentially with time.

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13y ago
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6mo ago

In pharmacology, half-life refers to the time it takes for the concentration of a drug in the body to decrease by half. It is an important parameter that influences dosing frequency and duration of drug action. A longer half-life typically means the drug remains in the body longer, requiring less frequent dosing.

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Q: How do you define half-life in pharmacology?
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