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The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.
Blood is approximately twice as thick as water because of the cells and other components found in it.
Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.
For pediatric patients, intravenous fluids are the most commonly cited products involved in medication errors that are reported to the USP.
In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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