Acetaminophen

how much is a single tablet?This is why the US should teach metric or stop using it: "...the maximum daily dose of nonprescription acetaminophen, which is currently 4 grams - equal to eight pills of a drug such as Extra Strength Tylenol." This would equate to a single tablet being 500mg or half a gram, in the very next sentence you contradict yourself.

"The current single dose of Extra Strength Tylenol, for instance, is 1,000 milligrams."

http://health.usnews.com/articles/health/healthday/2009/06/30/fda-advisers-urge-smaller-doses-of-acetaminophen.html