A woman in a gym, apparently having just completed a workout, says, "Fast: that's just the kind of relief my muscles need." Or something like that. It was the beginning of a commercial, and don't ask me for what (other than some pain relief drug, obviously) since it was switched off after that line. Perhaps it was a good commercial, though, since it did get me thinking.
First of all, why is she sore immediately after working out? Sounds like she needs a new workout. (Or a good trainer!) Immediately after a hard workout, muscles experience fatigue, often in the extreme. As in "I can't get up" extreme. But that's different from pain, and no pain-relief product will put a stop to that. The muscular pain associated with a hard workout typically shows up 24-48 hours afterwards and is known as Delayed Onset Muscle Soreness or DOMS. Continue reading
Ah, pity the poor maligned 
Imagine you could take a pill (with no side-effects) and instantly double your strength. How would that feel? What might you do differently (other than crush your enemies, of course)? Suddenly, you could run faster, jump higher, climb, lift, throw...do all kinds of activities that were previously very difficult or even impossible. But even the simple things are affected: standing up from a chair, climbing stairs, carrying the groceries, mowing the lawn...almost everything is easier. How much would you pay for a pill like that?