Question

The time period for which the plasma concentration of drug remains above minimum effective concentration is known as ______________

(a) Onset of time

(b) Onset of action

(c) Duration of drug of action

(d) Therapeutic range

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This is a very interesting question from Pharmacokinetic topic in section Pharmacokinetic Drug Interactions & Basic Considerations of Drug Biotechnology

Answer 1

The correct choice is (c) Duration of drug of action

To explain: The time period for which the plasma concentration of drug remains above minimum effective concentration is known as the duration of drug action. Onset of action is the time needed for the curve to reach the peak. Onset time is the time required for the drug to start producing pharmacologic response. The therapeutic range is between the minimum effective concentration and maximum safe concentration.