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Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.
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Medication errors are three times higher among children and infants than with adults.
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Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.
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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
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When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.