BiologyRevisionYr10
- Created by: mollie
- Created on: 28-12-12 13:00
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- Biology YR10
- DRUGS
- Drugs are chemicals that affect the way the body functions-Nervous system
- Drugs i know of: Cocaine, Heroin, Paracetamol, Nicotine, Cannabis, Magic Mushrooms
- Legal= A drug that is allowed by law
- Illegal= A drug that is not allowed by law
- A recreational drug is taken for pleasure/ enjoyment, not medical used,
- Medical drug cures medical conditions,
- Scientists have to go through testing and trialling before they can be used
- 1.Pre-Clinical development-Undergoes many laboratory tests. Tested on animals=3Years
- 2.Clinical Development- Human testing begins. Split into 3 different phases-Phase I, Phase II and Phase III= 6Years
- Phase I=The drug gets tested in 50-100 healthy volunteers or patients with the disease, to find a safe dose and to see how it works in humans.
- Phase II=The drug is tested in 200-400 patients to see whether it works and to make sure it doesn't produce unacceptable side-effects
- Phase III=The drug is tested in 3000+ patients and compared with an existing drug or placebo. This is to see how effective it is.
- 3.Regulatory Review-All the data about the drug is studied by a regulatory authority. If the benefits of the drug outweigh any risks it is licensed as a treatment.
- -2Years
- 4.Drug Launch and Beyond-The drug continues to be studied to make sure it doesn't cause very rare side effects. New formulations, such as long-acting tablets, may also be developed= 1Year
- Benefits of using a placebo are: you can compare to see if there are any differences
- DRUGS
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