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In 1864, the first barbiturate (barbituric acid) was synthesized.
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Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.
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About 100 new prescription or over-the-counter drugs come into the U.S. market every year.
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Acute bronchitis is an inflammation of the breathing tubes (bronchi), which causes increased mucus production and other changes. It is usually caused by bacteria or viruses, can be serious in people who have pulmonary or cardiac diseases, and can lead to pneumonia.
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People about to have surgery must tell their health care providers about all supplements they take.