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# Development and use of drugs
# Accidental discovery
Penicillin
# How common is the use of traditional medicines?
Very common.
# Describe examples of aspirin
- Ibuprofen
- Codeine
- Hydrocodone
# Observation of wildlife
- Bears and monkeys use citrus oils and insecticides
- Birds line their nests with medicinal leaves to keep blood-sucking mites away
# Further plant research
- Observing how a plant behaves or influences something that is harmful to humans
- Isolate an active ingredient
- Optimise a dose of the active ingredient and a delivery method to use as treatment