Modern Process
Human Cell testing
- test different concentrations of drug on different body cells
- says how well works against disease and how safe it is
Animal Testing
- if passes human cells, tested on animals
- makes sure works on whole organisms
Clinical Testing
- if passes animal tests, can be tested on people
- gives more information on effectiveness and safety
William Worthing's Process
Treatment from tea
- woman showed signs of disease but drinking 'special' tea it cured
Investigation on plants
Human Testing - few people became healthy from doses of drug
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