If 600 mg of a pain medication are administered, and 75 mg remain in the patient after 48 hours, what is the drug's half-life?

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Quizplus · Accepted Answer

The half-life is the time it takes for the drug concentration to reduce to half its initial amount. Starting with 600 mg, it reduces to 300 mg, then to 150 mg, and finally to 75 mg. This is three half-lives in 48 hours, so each half-life is 48/3 = 16 hours.

If 600 Mg of a Pain Medication Are Administered, and 75