B1.3 The Use and Abuse of Drugs Flashcards

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1
Q

What are drugs?

A

Substances that interfere with the chemical reactions occurring in the body - sometimes for the better, sometimes not

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2
Q

What can the chemical changes caused by drugs lead to? What happens if the drug isn’t taken?

A

The body becoming dependent on the drug (addicted) and if the drug isn’t taken, an addict can suffer withdrawal symptoms

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3
Q

What are the three different types of drugs?

A

Medicinal, recreational and performance-enhancing drugs

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4
Q

What are medicinal drugs used for? How can you get them?

A

They are medically useful, like antibiotics. Some need a prescription because they can be dangerous if misused, but others don’t need a prescription

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5
Q

What are recreational drugs used for?

A

For fun

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6
Q

What are performance-enhancing drugs used for?

A

To improve a person’s performance in sport

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7
Q

What are examples of performance-enhancing drugs? How do they help? (2)

A

Anabolic steroids - increase muscle size making the athlete stronger
Stimulants - increase heart rate so glucose + oxygen are transported to muscles faster giving them more energy

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8
Q

What negative health effects do performance-enhancing drugs have?

A

Steroids can cause high blood pressure and stimulants can cause an irregular heartbeat

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9
Q

Are performance-enhancing drugs illegal?

A

Some are, some are prescription-only, but all are banned in sports

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10
Q

What ethical problems are there with performance-enhancing drugs? (3)

A

Unfair advantage, athletes may be unaware of the health risks and whereas athletes from wealthier countries can afford them, poorer countries can’t

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11
Q

What ethical arguments for performance-enhancing drugs? (3)

A

It’s the athletes body, they can do what they want, drug-free sport isn’t fair anyway, different have better training facilities so drugs make it fairer and it avoids athletes being punished from taking a drug which they were not aware of

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12
Q

What process does a drug need to go through in order to be released to the public? (5)

A

Laboratory testing - Testing on cells and tissues, live animal testing
Clinical trials - Placebos and blind/double-blind trials

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13
Q

When testing a drug, what happens in the first step in laboratory testing?

A

The drug is tested on human cells and tissues, this doesn’t test how the drug affects the whole body

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14
Q

When testing a drug, what happens in the second step in laboratory testing?

A

The drug is tested on live animals, to see how harmful it is and what the best dosage is - in Britain, the drug must be tested on at least 2 mammals

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15
Q

What ethical problems are there in the second step of testing a drug in a lab? (2) Why is it still done?

A

People think it is cruel to test drugs on animals and others think it’s pointless as animals are so different from humans - but it is the safest way to test a drug

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16
Q

When testing a drug, what happens in the first step of the clinical trials?

A

The clinical trials, the drugs are tested on healthy human volunteers to test if they have any harmful side effects, it starts a low dosage and slowly increases

17
Q

When testing a drug, what happens in the second/third of the clinical trials?

A

After the clinical trial, the drug is tested on a sufferer of the illness - the optimum dose is found

18
Q

When testing a drug, what happens in the fourth step of the clinical trials?

A

Placebos, a group of patients are given the drug, another is given a fake version of the drug which doesn’t actually do anything, this is to test if the drug actually has benefits or if it is useless

19
Q

When testing a drug, what happens in the fifth step of the clinical trials?

A

Clinical trials are blind, the patient doesn’t know if they are getting the drug or a placebo - clinical trials are often double-blind which means neither the doctor or patient knows if it is a placebo or not, this is to assure that the doctor isn’t influenced by their knowledge

20
Q

What is the importance of testing a drug?

A

A drug needs to be tested thoroughly to know if they are safe or not.

21
Q

Can you give an example where a drug wasn’t tested properly?

A

Thalidomide was originally intended to be a sleeping pill, but it was found effective in relieving morning sickness in preg’ women - this use wasn’t tested properly and it was later found the babies were born with birth defects e.g. no arms

22
Q

What is difference between illegal ‘soft’ and ‘hard’ drugs?

A

Hard drugs are usually more addictive and harmful than soft drugs - but these are not scientific descriptions

23
Q

What can recreational drugs cause?

A

Heroin, E and tree can all cause heart and circulatory system problems

24
Q

Why do people take recreational drugs? (4)

A

Relaxation, stress relief, enjoyment, inspiration

25
Q

What is the progression of soft drugs to hard drugs?

A

Weed is a ‘stepping stone’ - it creates effects which create a desire to try harder drugs
Weed is a ‘gateway drug’ - it brings people into contact with drug dealers
Genetics - some people are more like to take drugs

26
Q

What examples are there of legal recreational drugs?

A

Nicotine, alcohol and caffeine

27
Q

What effects does smoking have on a person’s health? (3)

A

Disease of the heart, blood vessels and lungs, cancer and it’s very addictive so it’s hard to stop

28
Q

What effects does alcohol have on a person’s health? (3)

A

Affects the nervous system and slows down the body’s reactions, liver disease and brain damage, addictive and you can get drunk which results in poor coordination and unconsciousness

29
Q

What results do legal recreational drugs have on society? (3)

A

NHS spends lots of money on helping people with lung disease, same with alcohol, but alcohol is regularly associated with crime