Wrigley fears that food firms may not profit much from pharmaceutical gums, as drug suppliers may gain most of the value and drug approval costs are so high.

ECONOMIST: Medical confectionery

So any bid would need to have firm plans for navigating these challenges such as keeping the two firms as separate entities to help ensure privacy concerns are met in addition to reaching a value for the firm that could win shareholder approval.

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Globalize the total value chain (product planning, product development, approval, procurement, production, and sales).

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"Afinitor is another example of the value of continuing to study drugs in additional types of cancer after their initial approval, " said Dr. Richard Pazdur, director of the FDA's cancer drug office.

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Mr Grade also introduced the concept of the Public Value Test which will be formally applied before new services, projects and changes, are given approval.

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