CONFIDENTIAL AND PROPRIETARY © Epocrates, Inc. All rights reserved. To learn more about Epocrates, please visit us at Physician survey on generic drug use Sponsored by: Epocrates, Inc February 2009

CONFIDENTIAL AND PROPRIETARY © Epocrates, Inc. All rights reserved. To learn more about Epocrates, please visit us at Slide 2 Survey respondents: U.S. physicians Survey background:  705 U.S. physicians registered with Epocrates  Completed in January 2009  Physicians randomly selected to participate  Respondents representing: primary care, cardiology, psychiatry, oncology, gastroenterology, rheumatology Source: Epocrates Market Research Panel

CONFIDENTIAL AND PROPRIETARY © Epocrates, Inc. All rights reserved. To learn more about Epocrates, please visit us at Slide 3 To what degree are you concerned that your patients may not be complying with the prescription you wrote given the economical climate and financial cutbacks? Physicians are concerned patients are not complying with prescriptions due to financial cutbacks What type of changes are you concerned your patients may be making?* *respondents may select all that apply # of respondents

CONFIDENTIAL AND PROPRIETARY © Epocrates, Inc. All rights reserved. To learn more about Epocrates, please visit us at Slide 4 In the last 6 months, would you estimate more or less patients asking for generic medications? Physicians report an increase in requests for generic medications since the economy has weakened Compared to last year, do you write more or less prescriptions for generic medications?

CONFIDENTIAL AND PROPRIETARY © Epocrates, Inc. All rights reserved. To learn more about Epocrates, please visit us at Slide 5 More than half of physicians believe generics are clinically equivalent What is your opinion on the equivalency of brand and generic drugs? Is there a reason that you would prescribe a brand name drug rather than a generic for your patient?* *respondents may elect all that apply; includes responses above 10% # of respondents

CONFIDENTIAL AND PROPRIETARY © Epocrates, Inc. All rights reserved. To learn more about Epocrates, please visit us at Slide 6 More than half of physicians believe generics are clinically equivalent How do you typically identify generic alternatives?* Electronic formulary reference Electronic medical record e-Prescribing *respondents may elect all that apply; includes responses above 20% What healthcare technology do you believe helps you save patients the most money? # of respondents