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GCSE Combined Science · key term
A substance being investigated because it might be useful as a medicine.
Used by OCR
Specification B6.3k · Biology Paper 2
Revise: Drug Discovery and DevelopmentPromising substances become candidate drugs and may be chemically modified to improve their properties. Many candidates are discarded because they are ineffective or harmful.
Biology, Combined Science
A substance identified as a possible medicine that needs further testing before it can be used widely.
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Scientists look for substances that could affect the cause of a disease or a biological process involved in it. They screen possible substances to identify promising candidate drugs. Computer modelling can help identify molecules worth investigating, and chemists can synthesise them for testing.
