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People about to have surgery must tell their health care providers about all supplements they take.

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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.

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Human kidneys will clean about 1 million gallons of blood in an average lifetime.

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Drug-induced pharmacodynamic effects manifested in older adults include drug-induced renal toxicity, which can be a major factor when these adults are experiencing other kidney problems.

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The use of salicylates dates back 2,500 years to Hippocrates's recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

An example of anaerobic respiration in E. coli An example of anaerobic respiration in E. coli
Bioluminescent Organisms Bioluminescent Organisms
The ethanol molecule showing two carbon atoms, six hydrogen atoms, and one oxygen atom. The ethanol molecule showing two carbon atoms, six hydrogen atoms, and one oxygen atom.
An ignition- or mixture-related misfire can cause hash on the oxygen sensor waveform. An ignition- or mixture-related misfire can cause hash on the oxygen sensor waveform.
Comparison of free energies of hydrolysis of thioesters and oxygen esters Comparison of free energies of hydrolysis of thioesters and oxygen esters
A very small sampling of organisms in an arctic food web on land. A very small sampling of organisms in an arctic food web on land.
Video: Studying the Left and Right Brain Independently

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