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Author Question: After one half-life, ____________________ of the radioactive parent atoms will have decayed to ... (Read 48 times) |
Cocaine was isolated in 1860 and first used as a local anesthetic in 1884. Its first clinical use was by Sigmund Freud to wean a patient from morphine addiction. The fictional character Sherlock Holmes was supposed to be addicted to cocaine by injection.
Drugs are in development that may cure asthma and hay fever once and for all. They target leukotrienes, which are known to cause tightening of the air passages in the lungs and increase mucus productions in nasal passages.
The U.S. Pharmacopeia Medication Errors Reporting Program states that approximately 50% of all medication errors involve insulin.
When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.