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Section 17.3 Commonly Abused Drugs Slide 1 of 31 Objectives Compare the effects of depressants, stimulants, and hallucinogens on the body. Describe the.

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Presentation on theme: "Section 17.3 Commonly Abused Drugs Slide 1 of 31 Objectives Compare the effects of depressants, stimulants, and hallucinogens on the body. Describe the."— Presentation transcript:

1 Section 17.3 Commonly Abused Drugs Slide 1 of 31 Objectives Compare the effects of depressants, stimulants, and hallucinogens on the body. Describe the effects of marijuana. Section 17.3 Commonly Abused Drugs Name three classes of drugs of increasing concern in recent years.

2 Section 17.3 Commonly Abused Drugs Slide 2 of 31 Health Stats The graph shows the number of new abusers of prescription pain relievers in each year since What factors do you think are responsible for the increase in prescription drug abuse?

3 Section 17.3 Commonly Abused Drugs Slide 3 of 31 A psychoactive drug that slows brain and body reactions is called a depressant. Depressants Depressants slow body functions by decreasing heart and breathing rates and lowering blood pressure.

4 Section 17.3 Commonly Abused Drugs Slide 4 of 31 One class of depressants is the barbiturates (bahr BICH ur its) —also called sedative-hypnotics. Barbiturates In small doses, barbiturates are sedatives—they relax a person. In high doses, barbiturates are hypnotics—they induce sleep.

5 Section 17.3 Commonly Abused Drugs Slide 5 of 31 A CNS depressant is a sedative that slows the activity of the central nervous system (CNS). CNS Depressants CNS depressants slow nerve activity relax muscle tension lower alertness cause drowsiness

6 Section 17.3 Commonly Abused Drugs Slide 6 of 31 An opiate (OH pee it) is any drug made from psychoactive compounds contained in the seed pods of poppy plants. Opiates In small doses, opiates act to dull the senses, relieve pain, and induce sleep. Heroin is an illegal opiate made from morphine in a laboratory. Heroin is highly addictive.

7 Section 17.3 Commonly Abused Drugs Slide 7 of 31

8 Section 17.3 Commonly Abused Drugs Slide 8 of 31 A stimulant is a drug that speeds up activities of the central nervous system. Stimulants Stimulants increase Physicians sometimes prescribe certain stimulants to treat sleep disorders and behavioral disorders. heart rate blood pressure breathing rate alertness

9 Section 17.3 Commonly Abused Drugs Slide 9 of 31 Amphetamines (am FET uh meenz) are prescription drugs that are sometimes sold illegally as “speed” or “uppers.” Amphetamines Amphetamine abuse produces feelings of well-being and high energy. The effects wear off quickly and the abuser is often left feeling depressed.

10 Section 17.3 Commonly Abused Drugs Slide 10 of 31 A stimulant that is related to amphetamines, but is even more powerful, is methamphetamine. Methamphetamine Methamphetamine initially produces a rush, or “high.” But, after the rush wears off, the user may become confused shaky anxious irritable violent

11 Section 17.3 Commonly Abused Drugs Slide 11 of 31

12 Section 17.3 Commonly Abused Drugs Slide 12 of 31 Cocaine is a powerful but short-acting stimulant. Cocaine Cocaine is highly addictive. When cocaine’s effects wear off, abusers often experience depression, which can be severe. Crack is the strongest form of cocaine.

13 Section 17.3 Commonly Abused Drugs Slide 13 of 31

14 Section 17.3 Commonly Abused Drugs Slide 14 of 31 A hallucinogen (huh LOO sih nuh jun) is a drug that distorts perception, thought, and mood. Hallucinogens Hallucinogens overload the brain with sensory information, causing a distorted sense of reality. Abusers cannot tell what is real may experience memory loss and personality changes may be unable to perform normal activities may lose track of time and their surroundings

15 Section 17.3 Commonly Abused Drugs Slide 15 of 31 The strongest known hallucinogen is lysergic acid diethylamide, or LSD. LSD LSD’s effects are unpredictable—it can either stimulate or depress the central nervous system. Abusers experience hallucinations in which they may see colorful visions and mistakenly feel they have superhuman powers.

16 Section 17.3 Commonly Abused Drugs Slide 16 of 31 Another hallucinogen is psilocybin (sil uh sy bin)—sometimes called “shrooms.” Psilocybin Psilocybin is a chemical found in a certain type of mushroom. The effects of psilocybin are much like those of LSD, but not as strong.

17 Section 17.3 Commonly Abused Drugs Slide 17 of 31 One of the most dangerous of all drugs is PCP, short for phencyclidine. PCP Because the drug eliminates the sensation of pain, abusers may unintentionally injure or even kill themselves. Some PCP abusers develop signs of schizophrenia.

18 Section 17.3 Commonly Abused Drugs Slide 18 of 31 Marijuana (mar uh WAH nuh) is the leaves, stems, and flowering tops of the hemp plant Cannabis sativa. Marijuana

19 Section 17.3 Commonly Abused Drugs Slide 19 of 31 Marijuana is one of the most frequently abused psychoactive drugs. Effects of Marijuana Its main ingredient changes the way information reaches and is acted upon by the brain. Side effects of marijuana use include distorted perceptions difficulties with thinking and problem solving loss of motor coordination increased heart rate feelings of anxiety or paranoia

20 Section 17.3 Commonly Abused Drugs Slide 20 of 31 Users often feel sleepy or drowsy. Marijuana and Driving Marijuana use can make it difficult to judge distances and react quickly to signals and sounds on the road.

21 Section 17.3 Commonly Abused Drugs Slide 21 of 31 Marijuana use is often a gateway to using other “harder” drugs, such as cocaine. A Gateway to Other Drugs As marijuana users build up tolerance, they may seek out other drugs to experience the “high” they first got from marijuana.

22 Section 17.3 Commonly Abused Drugs Slide 22 of 31 Click above to go online. For: More on commonly abused drugs

23 Section 17.3 Commonly Abused Drugs Slide 23 of 31 Three classes of drugs that are of growing concern in recent years are club drugs, inhalants, and anabolic steroids. Club Drugs, Inhalants, and Steroids The effects of club drugs and inhalants are extremely unpredictable and dangerous. Abuse of steroids causes lifelong damage to the body and brain.

24 Section 17.3 Commonly Abused Drugs Slide 24 of 31 Club drugs got their name from the fact that they first gained popularity at dance clubs and raves. Club Drugs Their effects are different from person to person and very dangerous. While under the effects of rohypnol (roh HYP nawl), a person may be hurt or raped and not even be able to recall the event later on.

25 Section 17.3 Commonly Abused Drugs Slide 25 of 31 A breathable chemical vapor that produces mind-altering effects is called an inhalant (in HAYL unt). Inhalants

26 Section 17.3 Commonly Abused Drugs Slide 26 of 31 Anabolic steroids are synthetic drugs that are similar to the hormone testosterone. Anabolic Steroids Steroids are abused primarily by people who want bigger muscles. Steroids can make a user’s personality very aggressive. Some steroid users become severely depressed.

27 Section 17.3 Commonly Abused Drugs Slide 27 of 31

28 Section 17.3 Commonly Abused Drugs Slide 28 of 31

29 Section 17.3 Commonly Abused Drugs Slide 29 of 31 Vocabulary depressantA drug that slows brain and body reactions. barbiturates A class of depressant drugs; also called sedative-hypnotics. opiate Any drug made from psychoactive compounds contained in the seed pods of poppy plants. heroinAn illegal opiate made from morphine in a laboratory. stimulantA type of drug that increases the activity of the nervous system. amphetaminesPrescription drugs that are sometimes sold illegally as “speed” or “uppers.”

30 Section 17.3 Commonly Abused Drugs Slide 30 of 31 Vocabulary methamphetamineA stimulant that is related to amphetamines, but is even more powerful. cocaine A drug that is a powerful but short-acting stimulant. hallucinogen A drug that distorts perception, thought, and mood. marijuana A drug made from the leaves, stems, and flowering tops of the hemp plant. club drugs Drugs that first gained popularity at dance clubs and raves. inhalantA breathable chemical vapor that produces mind-altering effects.

31 Section 17.3 Commonly Abused Drugs Slide 31 of 31 QuickTake Quiz Click to start quiz.

32 Section 17.3 Commonly Abused Drugs Slide 32 of 31 End of Section 17.3 Click on this slide to end this presentation.


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