A non-steroidal anti-inflammatory drug is metabolized with a first-order rate constant of 3.25 day-1. what is the half-life for the metabolism reaction? 1. 1.63 day 2. 0.308 day 3. 0.213 day 4. 2.25 day

A radioactive half-life talks about the amount of time it takes for half of the original isotope to deteriorate.

The solution for this problem is:

Half-life (lst order reaction) = ln2 over k

so half-life =.693 over 3.25 =.213 day is the half-life for the metabolism reaction