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A 42-year-old member asked:

Does one 300 milligram pill of aspirin contain one aspirin molecule that does all the healing work or are there millions of molecules in this one pill?

2 doctor answers3 doctors weighed in
Dr. Dan Fisher
Internal Medicine 27 years experience
1 X 10E21: There are millions of millions of millions of molecules in 300 mg of aspirin. In fact the number of molecules is very close to... 1, 000, 000, 000, 000, 000, 000, 000 molecules based on a molecular weight of 180 grams/mole. That is a very large number.
Dr. Marvin Den
Internal Medicine 45 years experience
Milligrams: The dosage has nothing to do with the number of molecules. It is a measurement of the amount of medicine in that pill.

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Last updated Jan 11, 2013
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