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More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.
In women, pharmacodynamic differences include increased sensitivity to (and increased effectiveness of) beta-blockers, opioids, selective serotonin reuptake inhibitors, and typical antipsychotics.
On average, the stomach produces 2 L of hydrochloric acid per day.
Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.
In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.