Drug discovery companies are in the business of looking for the next Blockbuster drug - but finding it can be incredibly difficult Many drugs have been discovered by identifying an active ingredient from a traditional remedy, or completely ccidentally. In the 1990s, Big Pharma companies switched their focus from natural products to combinatorial chemistry to deliver potential therapeutic compounds because of the lower costs and clarity on intellectual property - and because it could supply huge synthetic libraries in a short space of time.
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