It's the combo of aspirin and caffeine. Somehow caffeine accelerates the anti-inflammatory properties of the pain killers. A couple of years ago Excedrin made a point of advertising that their formula contains aspirin (and acetominophen) and caffeine and how that's what makes it work so fast. Sadly it was right on the crest of the anti-caffeine wave and the campaign seemed to disappear very quickly.
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timeasmymeasure
UBI...
Date: 2005-04-20 12:33 pm (UTC)