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The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.

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The toxic levels for lithium carbonate are close to the therapeutic levels. Signs of toxicity include fine hand tremor, polyuria, mild thirst, nausea, general discomfort, diarrhea, vomiting, drowsiness, muscular weakness, lack of coordination, ataxia, giddiness, tinnitus, and blurred vision.

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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.

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People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.

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Anti-aging claims should not ever be believed. There is no supplement, medication, or any other substance that has been proven to slow or stop the aging process.

Commonly Used Pharmacology Abbreviations Commonly Used Pharmacology Abbreviations
One type of safety needle withdraws into a protective sheath when the injection is complete. One type of safety needle withdraws into a protective sheath when the injection is complete.
A beam-type torque wrench that displays the torque reading on the face of the dial. The beam display ... A beam-type torque wrench that displays the torque reading on the face of the dial. The beam display ...
Structure of a complex of a type II DNA methylase with DNA Structure of a complex of a type II DNA methylase with DNA
Rock Type Influences Weathering Rock Type Influences Weathering
Video: Burn Animation

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