SYMLIN Market Opportunity: US Insulin Prescriptions Highly Concentrated

* One decile = 10% of US insulin prescriptions

Decile* # Prescribers % Endos

1 1,000 81

2 2,000 45

3 4,000 9

4 6,000 4

5 8,000 2

6 10,000 1

7 14,000 1

8 20,000 1

9 34,000 1

10 193,000 0

SALES &MARKETING