B1.3 The Use and Abuse of Drugs Flashcards
What are drugs?
Substances that interfere with the chemical reactions occurring in the body - sometimes for the better, sometimes not
What can the chemical changes caused by drugs lead to? What happens if the drug isn’t taken?
The body becoming dependent on the drug (addicted) and if the drug isn’t taken, an addict can suffer withdrawal symptoms
What are the three different types of drugs?
Medicinal, recreational and performance-enhancing drugs
What are medicinal drugs used for? How can you get them?
They are medically useful, like antibiotics. Some need a prescription because they can be dangerous if misused, but others don’t need a prescription
What are recreational drugs used for?
For fun
What are performance-enhancing drugs used for?
To improve a person’s performance in sport
What are examples of performance-enhancing drugs? How do they help? (2)
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
What negative health effects do performance-enhancing drugs have?
Steroids can cause high blood pressure and stimulants can cause an irregular heartbeat
Are performance-enhancing drugs illegal?
Some are, some are prescription-only, but all are banned in sports
What ethical problems are there with performance-enhancing drugs? (3)
Unfair advantage, athletes may be unaware of the health risks and whereas athletes from wealthier countries can afford them, poorer countries can’t
What ethical arguments for performance-enhancing drugs? (3)
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
What process does a drug need to go through in order to be released to the public? (5)
Laboratory testing - Testing on cells and tissues, live animal testing
Clinical trials - Placebos and blind/double-blind trials
When testing a drug, what happens in the first step in laboratory testing?
The drug is tested on human cells and tissues, this doesn’t test how the drug affects the whole body
When testing a drug, what happens in the second step in laboratory testing?
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
What ethical problems are there in the second step of testing a drug in a lab? (2) Why is it still done?
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