Pharmacy Benefit Management

Company

Rx Covered Lives

Market Share

CVS/Caremark Rx, Inc.

95,000,000

17.05%

Medco Health Solutions, Inc.

60,000,000

10.77%

Express Scripts/CuraScript

50,000,000

8.97%

ICORE Healthcare, Inc.

38,000,000

6.82%

WellPoint NetRx

36,000,000

6.46%

PharmaCare Management Services, Inc.

31,000,000

5.56%

MedImpact Healthcare Systems, Inc.

27,000,000

4.85%

Argus Health Systems, Inc.

25,000,000

4.49%

HealthTrans

14,038,624

2.52%

ACS, Inc.

14,000,000

2.51%

Prime Therapeutics, LLC

12,500,000

2.24%

ScriptSave

12,000,000

2.15%

RxStrategies, Inc.

12,000,000

2.15%

Health Information Designs, Inc.

11,000,000

1.97%

Pharmacy Services Group

10,950,000

1.97%

Prescription Solutions

10,390,981

1.87%

Aetna Pharmacy Management (APM)

10,200,000

1.83%

First Health Services Corporation

10,000,000

1.79%

CIGNA Pharmacy Management

9,200,000

1.65%

NMHC

8,900,000

1.60%

RxAmerica

7,965,730

1.43%

Walgreens Health Services Division

6,100,000

1.09%

Sanovia Corporation

5,000,000

0.90%

BioScrip

4,656,614

0.84%

RESTAT

3,300,000

0.59%

35 Other Pharmacy Benefit Companies

32,934,372

5.91%

SOURCE: AIS's exclusive quarterly survey of pharmacy benefit management companies conducted by Drug Benefit News during the 2nd quarter of 2007.

METHODOLOGY: Survey conducted by AIS researchers and supplemented by publicly available information sources. Membership=lives covered under any/all pharmacy benefit contracts served by the company; members may be served by multiple contracts held by a single company or by multiple companies, and so may be counted more than once. Company market shares calculated as percentage of total industry-wide membership identified in this database.

Survey data updates are available to Drug Benefit News subscribers each quarter on request.