UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of

the Securities Exchange Act of 1934

(Rule 14a-101)

Filed by the Registrant  x

Filed by a Party other than the Registrant  ¨

Check the appropriate box:

¨        Preliminary Proxy Statement   ¨        Definitive Proxy Statement   x       Definitive Additional Materials   ¨        Soliciting Material Pursuant to §240.14a-12 ¨        Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

IMS HEALTH INCORPORATED

(Name of Registrant as Specified In Its Charter)

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

Payment of Filing Fee (Check the appropriate box):

x No fee required.

¨ Fee computed on table below per Exchange Act Rules 14a-6(i)(1) and 0-11.

(1) Title of each class of securities to which transaction applies:

(2) Aggregate number of securities to which transaction applies:

(3) Per unit price or other underlying value of transaction computed pursuant to Exchange Act Rule 0-11 (set forth the amount on which the filing fee is calculated and state how it was determined):

(4) Proposed maximum aggregate value of transaction:

(5) Total fee paid:

¨ Fee paid previously with preliminary materials.

¨ Check box if any part of the fee is offset as provided by Exchange Act Rule 0-11(a)(2) and identify the filing for which the offsetting fee was paid previously. Identify the previous filing by registration statement number, or the form or schedule and the date of its filing.

(1) Amount Previously Paid:

(2) Form, Schedule or Registration Statement No.:

(3) Filing Party:

(4) Date Filed:

January 21, 2010

Dear Stockholder:

According to our latest records, we have not yet received your proxy for the important Special Meeting of IMS Health Incorporated stockholders to be held on February 8, 2010 at 11:30 a.m. EST, at The Hyatt Regency, 1800 East Putnam Avenue, Greenwich, Connecticut. At the Special Meeting, you will be asked to consider and vote upon a proposal to adopt the merger agreement with Healthcare Technology Holdings, Inc. Your Board of Directors recommends that IMS stockholders vote in favor of the proposal to adopt the merger agreement with Healthcare Technology Holdings, Inc.

Please vote today—by telephone, by Internet, or by signing, dating and returning the enclosed proxy card in the envelope provided.

Thank you for your cooperation.

Very truly yours,

David R. Carlucci

Chairman, Chief Executive Officer and President

REMEMBER:

You can vote your shares by telephone, or via the Internet.

Please follow the easy instructions on the enclosed proxy card.

If you have any questions, or need assistance in voting

your shares, please call our proxy solicitor,

INNISFREE M&A INCORPORATED

TOLL-FREE, at 1-888-750-5835.

ADDITIONAL INFORMATION AND WHERE TO FIND IT

In connection with the proposed merger (the “Merger”) of IMS with Healthcare Technology Acquisition, Inc., a Delaware corporation and a wholly owned subsidiary of Healthcare Technology Holdings, Inc., a Delaware corporation, IMS filed a definitive proxy statement and a form of proxy with the SEC on December 29, 2009 and the definitive proxy statement and a form of proxy were mailed to the IMS stockholders of record as of December 28, 2009. BEFORE MAKING ANY VOTING DECISION, IMS STOCKHOLDERS ARE URGED TO READ THE DEFINITIVE PROXY STATEMENT CAREFULLY BECAUSE THE DEFINITIVE PROXY STATEMENT CONTAINS IMPORTANT INFORMATION ABOUT THE PROPOSED MERGER. IMS stockholders will be able to obtain, without charge, a copy of the definitive proxy statement and other relevant documents filed with the SEC from the SEC’s website at http://www.sec.gov. IMS stockholders will also be able to obtain, without charge, a copy of the definitive proxy statement and other relevant documents by written or telephonic request directed to IMS Health Incorporated, Attn: Investor Relations, 901 Main Avenue, Norwalk, Connecticut 06851, telephone: (203) 845-5200, on the Investors page of the IMS corporate website at www.imshealth.com, or from our proxy solicitor, Innisfree M&A Incorporated, toll-free at (888) 750-5835 (banks and brokers call collect at (212) 750-5833).

IMS and its directors and officers may be deemed to be participants in the solicitation of proxies from the IMS stockholders with respect to the Merger. Information about the IMS directors and executive officers, their ownership of the IMS common stock and their interests in the merger, which may be different than those of IMS stockholders generally, is set forth in the definitive proxy statement and the proxy statement for the IMS 2009 Annual Meeting of Stockholders, which was filed with the SEC on March 27, 2009.