Depressant drugs

Depressant
Depressant is 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. Some are primarily used medically to relieve emotion stress, anxiety, and tension; others induce sleep, and still others are used to relieve pain. Depressants also reduce the rate and force of contraction of the heart and are used in the treatment of some forms of heart disease . Many depressants can induce psychological dependence and addiction (sees drug addiction and drug abuse ). Typically, overdo sage results in confusion, coma, and convulsions. In many cases, the effects of one depressant are intensified if another depressant is taken at the same time, e.g., if barbiturates are taken with alcohol. Because of their potential for abuse, there are now strict regulations regarding the dispensing of many depressant drugs.

Kind of depressant drug
Hypnotic drugs

Hypnotic drugs that induce sleep, sometimes called soporifics. In general, hypnotics are central nervous system depressants. Alcohol, laudanum (see opium), bromide salts, and herbs such as valerian have been used as hypnotics. Barbiturates and benzodiazepines are frequently prescribed hypnotics. Smaller doses of these same drugs may be used as sedatives.

Narcotic
Narcotic any of a number of substances that have a depressant effect on the nervous system. The chief narcotic drugs are opium, its constituent’s morphine and codeine, and the morphine derivative heroin. Actions and Uses In small doses narcotics have valuable medical uses, numbing the senses, relieving severe pain, and inducing sleep. They are also given preoperatively to relieve pain and anxiety. Common side effects include constipation, nausea, and allergic reactions. In large doses narcotics can be highly dangerous.
Narcotic Drugs
Narcotic drugs Definition Narcotics are addictive drugs that reduce the user's perception of pain and ... feeling of exaggerated and unrealistic well-being).