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hypnotic drugs

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hypnotic drugs, drugs that induce sleep, sometimes called soporifics. In general, hypnotics are central nervous system depressants depressant, any one of various substances that diminish functional activity, usually by depressing the nervous system. Barbiturates, sedatives, alcohol, and meprobamate are all depressants. Depressants have various modes of action and effects.
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. Alcohol, laudanum (see opium opium, substance derived by collecting and drying the milky juice in the unripe seed pods of the opium poppy, Papaver somniferum. Opium varies in color from yellow to dark brown and has a characteristic odor and a bitter taste.
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), bromide salts, and herbs such as valerian have been used as hypnotics. Barbiturates barbiturate , any one of a group of drugs that act as depressants on the central nervous system. High doses depress both nerve and muscle activity and inhibit oxygen consumption in the tissues. In low doses barbiturates act as sedatives, i.e.
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 and benzodiazepines benzodiazepine , any of a class of drugs prescribed for their tranquilizing, antianxiety, sedative, and muscle-relaxing effects. Benzodiazepines are also prescribed for epilepsy and alcohol withdrawal.
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 are frequently prescribed hypnotics. Smaller doses of these same drugs may be used as sedatives sedative, any of a variety of drugs that relieve anxiety. Most sedatives act as mild depressants of the nervous system, lessening general nervous activity or reducing the irritability or activity of a specific organ.
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1) While it may be occasionally appropriate to prescribe a pharmaceutical for sleep early in the phase of treatment, premature use of hypnotic drugs should be avoided where possible.
However, 20%-3G% of patients taking antidepressants used hypnotic drugs for more than 3 months, and 7%-12% took them for more than a year.
Experimental procedure Experiment 1: effects of different dose of pentobarbital sodium on sleeping time of mice The method of pentobarbital induced sleeping in mice is a classic pharmacological experiment on screening of sedative and hypnotic drugs.
 
 
 
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