The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.
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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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In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.
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The horizontal fraction bar was introduced by the Arabs.
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The effects of organophosphate poisoning are referred to by using the abbreviations “SLUD” or “SLUDGE,” It stands for: salivation, lacrimation, urination, defecation, GI upset, and emesis.
Body plan of an arthropod, as represented by a grasshopper
Body plan of a crustacean, as represented by a shrimp
Body plan of an echinoderm, as represented by a sea star.
The Scopes Trial: William Jennings Bryan (right) represented the state of Tennessee, and Clarence Da