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Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).
Human kidneys will clean about 1 million gallons of blood in an average lifetime.
Approximately 25% of all reported medication errors result from some kind of name confusion.
Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.
There are major differences in the metabolism of morphine and the illegal drug heroin. Morphine mostly produces its CNS effects through m-receptors, and at k- and d-receptors. Heroin has a slight affinity for opiate receptors. Most of its actions are due to metabolism to active metabolites (6-acetylmorphine, morphine, and morphine-6-glucuronide).