Posted by **Sharon** on Sunday, January 8, 2012 at 2:49am.

The LD (subscript 50) for a drug dose that would be fatal for 50% of the population. The LD (subscript 50)for aspirin in rats is 1.75 grams/kilogram of body weight. Calculate how many aspirin tablets a human weighing 155 pounds would have to take to reach this dosage. (1 aspirin = 5 grams = 325 mg)

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