An interesting note on aspirin and willow bark. It is true that the salicylic acid found in the bark is an effective pain reliever, fever reducer and anti-inflammatory. It's also an extremely strong acid that tends to do bad things to the stomach. It wasn't until the Bayer company modified it to become acetylsalicylic acid (a.k.a. aspirin) that the drug became widely used. The natural version, while effective, was not useable. The "artificial" one retained the effectiveness and increased the utility.
(interesting side note. Aspirin is originally the brand name Bayer develeoped for acetylsalicylic acid. It became the generic name over the years. Bayer also introduced another new drug that year. It was an opium derivitive to which they gave the brand name "Heroin". This also became a generic name, albeit with more sinister consequences.)
Finally, to quote the joke I used in the earlier thread.
Did you hear the one about the homeopath who died of an overdose after drinking distilled water?
"I often say that when you can measure what you are speaking about, and express it in numbers, you know something about it; but when you cannot measure it, when you cannot express it in numbers, your knowledge is of a meagre and unsatisfactory kind." - William Thompson, 1st Baron Lord Kelvin
"If it was so, it might be, and if it were so, it would be, but as it isn't, it ain't. That's logic!" - Tweedledee
This isn't right. This isn't even wrong. - Wolfgang Pauli