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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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Medication errors are more common among seriously ill patients than with those with minor conditions.
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Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
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The strongest synthetic topical retinoid drug available, tazarotene, is used to treat sun-damaged skin, acne, and psoriasis.
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After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.