drugs

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What is the first stage in medical testing? in the laboratory, using cells, tissues and live animals
Following testing on animals how are drugs tested on humans ? in clinical trials involving healthy volunteers and patients. Very low doses of the drug are given at the start of the clinical trial. If the drug is found to be safe, further clinical trials are carried out to find the optimum dose for the drug.
What is a double blind trial In some double blind trials, some patients are given a placebo, which does not contain the drug. Neither the doctors nor the patients know who has received a placebo and who has received the drug until the trial is complete.
What are statins used for ? statins lower the risk of heart and circulatory diseases they lower cholesterol levels
For what purposes was thalidomide originally developed? Thalidomide is a drug that was developed as a sleeping pill. It was also found to be effective in relieving morning sickness in pregnant women.
What harmful effects did thalidomide have and why was this not noticed during the drug testing period? Thalidomide had not been tested for use in pregnant women. Unfortunately, many babies born to mothers who took the drug were born with severe limb abnormalities.
What health problems can the misuse of the illegal recreational drugs ecstasy, cannabis and heroin lead to ? may have adverse effects on the heart and circulatory system
What specific health problems can cannabis use cause ? mental illness
Which has more effect on health , illegal or legal drugs and why? The overall impact of legal drugs (prescribed and non-prescribed) on health is much greater than the impact of illegal drugs because far more people use them.
Describe the effects of drugs on the body Drugs change the chemical processes in peoples’ bodies so that they may become dependent or addicted to the drug and suffer withdrawal symptoms without them. Heroin and cocaine are very addictive.
describe the use of drugs in sports Some drugs are banned by law and some are legally available on prescription, but all are prohibited by sporting regulations. Examples include stimulants that boost bodily functions such as heart rate; and anabolic steroids which stimulate muscle growth.
what is a placebo ? A pill that does not contain the active ingredient / drug
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