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1/5/2009
Monday morning
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| any drug that mimics the action of the neurotransmitter acetylcholine. See cholinergic drug. |
| any chemical substance that affects the functioning of living things and the organisms (such as bacteria, fungi, and protozoans) that infect them. Pharmacology, the science of drugs, deals with all aspects of drugs in medicine, including their mechanism of action, physical and chemical properties, metabolism, and therapeutics and prophylaxis. |
| the excessive, maladaptive, or addictive use of drugs for nonmedical purposes despite social, psychological, and physical problems that may arise from such use. Abused substances include such agents as anabolic steroids, which are used by some athletes to accelerate muscular development and increase strength and which can cause heart disease... |
| The transdermal application of drugs provides an alternate method for applying drugs to achieve a systemic, rather than local, effect. The administration of a drug through the skin not only minimizes the metabolism of the drug before it reaches the rest of the body but also eliminates the high and low blood levels associated with oral... |
| With very few exceptions, in order for a drug to affect the function of a cell, an interaction at the molecular level must occur between the drug and some target component of the cell. In most cases the interaction consists of a loose, reversible binding of the drug molecule, although some drugs can form strong chemical bonds with their target... |
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