Oxycontin releases oxycodone slowly and continuously over 12 hours and only needs to be given twice a day. Oxycodone is shorter-acting, with an average half-life of 3.2 hours, which means that half the dose of oxycodone is eliminated in 3.2 hours, which is why it is usually given four to six times a day to provide all-day pain relief.
And so the first half-life is 10 seconds. So let me write that in here, so t 1/2 is equal to 10 seconds. Again, a made up reaction, just to think about the idea of half-life. And then, let's say, now we have four. How long does it take for half of that to react? So if half of that reacts, we're left with two particles.
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