Maspirin? Baspirin? ... oh right, aspirin

So I dropped by the local GNC today to pick up some vitamins, and by the cash register I noticed a number of brightly coloured boxes of various "natural solutions" to minor health problems. Among them was one labeled "Comfort the Back"; its active ingredient (singular) is 1600mg of white willow bark per dose.

The box contains seven doses and costs $14.99.

That's right, for a bit over $2 per dose, you too can treat your back pain with colourfully branded aspirin.