Different Types Of Drugs And Their Effects Pdf

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Physicians have long recognized that different types of drugs affect people differently. Nonetheless, drugs may be categorized or classified according to certain shared symptomatologies or effects.

Drugs are chemicals that affect the body and brain. Different drugs can have different effects.

Pharmacology, or the study of drugs and medications, is a complicated subject. One of the ways to make it easier to understand is to have a good knowledge of drug classification, or the system by which various drugs are grouped together. Drugs are categorized in a variety of different ways. In the pharmaceutical industry, drugs are grouped according to their chemical activity or conditions that they treat.

7 Drug Categories

Drugs are chemical substances that can change how your body and mind work. They include prescription medicines, over-the-counter medicines , alcohol , tobacco , and illegal drugs. Drug use is dangerous. It can harm your brain and body, sometimes permanently. It can hurt the people around you, including friends, families, kids, and unborn babies. Drug use can also lead to addiction.

Research shows. You probably know that drugs affect feelings and moods, judgment, decision making, learning, and memory. Some of these effects occur when drugs are used at high doses or after prolonged use, and some may occur after just one use. But it is not only injection drug users who risk contracting or spreading infections. Mental Health Effects Drug abuse might affect an existing mental disorder or result in one. More than half of those who are addicted to drugs have also had some form of mental illness—either at the same time as their addiction or at some other point in their lives. This is probably not due to chance: drugs affect many of the same brain systems that are responsible for mental disorders.

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We live in a world where incredible drugs exist to treat many conditions that seemed untouchable in the past. In a report that looked at U. However, the impressive availability of medications also increases the possibility of drug interactions. This can cause the medication to be less or more potent than intended or result in unexpected side effects. If you use multiple medications, have certain health conditions, or see more than one doctor, you should be especially mindful of your medications.

A drug is any substance that causes a change in an organism's physiology or psychology when consumed. Consumption of drugs can be via inhalation , injection , smoking , ingestion , absorption via a patch on the skin, suppository , or dissolution under the tongue. In pharmacology , a drug is a chemical substance, typically of known structure, which, when administered to a living organism, produces a biological effect. Pharmaceutical drugs are often classified into drug classes —groups of related drugs that have similar chemical structures , the same mechanism of action binding to the same biological target , a related mode of action , and that are used to treat the same disease. Another major classification system is the Biopharmaceutics Classification System.


are chemical substances that affect the normal functioning of the drugs might have different names in rately in this brochure, they are often used together.


Drug Classifications

Drugs can be classified into different categories based on their chemical ingredients and their effects on users. Here are the five main categories and some information about each:. Central nervous system depressants.

If you've had a heart attack , you will most likely be prescribed medication that you will take for the rest of your life. There are many types and combinations of drugs used to treat coronary artery disease CAD , and your doctor or other health care provider will decide the best treatment combination for your situation. The following gives you a quick look at many typical cardiac medications.

Chemical Classifications of Drugs

Medications or pharmaceuticals are also drugs and are regulated differently dependent on their level of health risk. Short-term health harms. Short-term health harms are those that can occur as a result of an episode of use, or, in the case of medications, inappropriate use. These vary markedly depending on the drug being used type, amount etc and may be from the drug itself or from the manner in which the drug is taken. For information about the short-term health effects of a specific illicit drug, visit the page called Misused substances. A person is described as having taken an overdose if they suffer a medical emergency as a result of accidentally or intentionally using a larger amount of a drug than normal. This type of overdose can result from both taking too much of a prescribed drug or too much of an illicit drug or a combination of drugs.

Depressant substances reduce arousal and stimulation. They do not necessarily make a person feel depressed. They affect the central nervous system, slowing down the messages between the brain and the body.

Pharmacology, or the study of drugs and medications, is a complicated subject. One of the ways to make it easier to understand is to have a good knowledge of drug classification, or the system by which various drugs are grouped together. Drugs are categorized in a variety of different ways. In the pharmaceutical industry, drugs are grouped according to their chemical activity or conditions that they treat.

Given by injection into a vein intravenously, IV , into a muscle intramuscularly, IM , into the space around the spinal cord intrathecally , or beneath the skin subcutaneously, sc. Breathed into the lungs, usually through the mouth by inhalation or mouth and nose by nebulization. See also Introduction to Administration and Kinetics of Drugs. Many drugs can be administered orally as liquids, capsules, tablets, or chewable tablets. Because the oral route is the most convenient and usually the safest and least expensive, it is the one most often used.

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