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View Diary: AZ-07: White powder sent to Grijalva’s office determined to be toxic (198 comments)

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  •  "Overexposure" (4+ / 0-)

     That means "overdose".  The substance is the same thing as acetaminophen, the active ingredient in Tylenol.  In the proper dose, it is a medicine.  In excess (just like an overdose of Tylenol), it can cause serious problems.

    •  Except that with Tylenol, the proper dose is very (4+ / 0-)
      Recommended by:
      G2geek, ebohlman, Matt Z, sable

      close to the dangerous dose.  Even taking a single extra pill with each dose can cause liver damage after a while.  If it were pure Tylenol, then it is very dangerous.  Remember, it only takes 10 grams of caffeine to kill someone and (pure) nicotine is almost as lethal as strychnine.

    •  question is how potent/concentrated. (0+ / 0-)

      Tylenol has a very narrow range between the effective dose and a toxic dose, and a normal dose is @ 1,000 milligrams.

      A more potent compound would have a proportionally smaller toxic dose, and the toxicity would be amplified if it was inhaled as a powder dispersed in the air.

      Let's not forget that coumadin, a medical anticoagulant in controlled doses, is also the same chemical as rat poison.   If someone sent rat poison to a Congressmember, it wouldn't and shouldn't be written off as "nothing serious" just because the chemical can also be used medically.  

      A piece of lead is also pretty harmless as long as you don't eat it, but a whole 'nother deal if it's shaped into a cylinder with a blunt end, and then it's a bullet.  

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