B1 - Drugs Flashcards
What type of illness could be caused by smoking cannabis regularly?
Mental illness (Paranoia, schizophrenia, depression, dementia)
Give an example of a very addictive recreational drug.
Heroin, cocaine, nicotine
What is a drug?
A substance that affects chemical reactions in the body
What is a synapse?
A gap/junction between two neurones
What is a placebo?
A tablet without the drug
Why is a placebo group used in drug trials?
For comparison; to see if the drug works
Give three reasons why drugs must be tested before they can be used on patients.
To check the drug is not poisonous; to check if it treats the disease; to determine the dosage; to see how it interacts with other drugs.
What is a recreational drug?
A drug taken for pleasure/fun
What is the main purpose of pre-clinical testing?
Testing for toxicity
What is the main purpose of phase-I testing?
Testing for side-effects and interactions with other drugs
What is the main purpose of phase-2 and phase-3 testing?
To find the optimum dose and see if the drug works on ill people.
How is a foetus affected by a smoking mother?
Reduced birth mass; foetus receives less oxygen; smoke contains toxic carbon monoxide
