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The half-life of the drug is the time taken for the plasma concentration of the drug to reduce to 50% of its original value.

Units of half life are hour, minute, or day.

The formula for calculation half life of a drug is as follows:

Cp is the concentration at time one and Cp/2 is the concentration at time one half-life later:-

In( Cp/2) = In Cp - Kel . t1/2

half life of the drug (t 1/2) = 0.693/kel

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13y ago
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13y ago

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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15y ago

The half life of a drug is the time in which it takes half of the drug's dose that you ingested to be eliminated from your body.

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15y ago

The time that it takes for half of a medication to be processed and leave your system.

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14y ago

The half life refers to how long a dose of the medication affects the body. Some drugs stay effective for weeks, while others are measured in hours.

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11y ago

The time it takes for half of the drug to be eliminated from your body.

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11y ago

When a doctor explains the half life of a dosage of medication they are explaining how long it takes for each dosage of medication to take effect for one's body type.

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Q: What does it mean when a doctor talks about the half life of a dosage of a medication?
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