Karen Young Kreeger | Mar 17, 2002 | 6 min read
Editor's Note: This is the fifth article in a series on sex-based differences in the biology of males and females. The final article in the series will cover sex-based differences in life expectancy. Lisa Damiani More than 30 years ago, researchers noted for the first time the pharmacokinetic differences between men and women. They found that women pass antipyrine, a drug used to study liver metabolism, more quickly than men; this occurred around ovulation and during the luteal phase of their m