425
1
Howard McLure
Senior Executive Vice President & COO
Credit Suisse Healthcare Conference
November 16, 2006
Creating the Premier Pharmacy
Services Provider
Filed by Caremark Rx, Inc.
Pursuant to Rule 425 under the
Securities Act of 1933 and Deemed
Filed pursuant to Rule 14a-12
of
the Securities Exchange Act of 1934
Subject Company: Caremark Rx, Inc.
Commission File No.: 001-14200


2
Cautionary Statement Regarding
Forward-Looking Statements
This document contains certain forward-looking statements about CVS and Caremark.  When used in this
document, the words “anticipates”, “may”, “can”, “believes”, “expects”, “projects”, “intends”, “likely”, “will”, “to
be”
and any similar expressions and any other statements that are not historical facts, in each case as they
relate to CVS or Caremark, the management of either such company
or the transaction are intended to identify
those assertions as forward-looking statements.  In making any of those statements, the person making them
believes that its expectations are based on reasonable assumptions.  However, any such statement may be
influenced by factors that could cause actual outcomes and results to be materially different from those
projected or anticipated.  These forward-looking statements are subject to numerous risks and uncertainties. 
There are various important factors that could cause actual results to differ materially from those in any such
forward-looking statements, many of which are beyond the control of CVS and Caremark, including
macroeconomic condition and general industry conditions such as the competitive environment for retail
pharmacy and pharmacy benefit management companies, regulatory and litigation matters and risks,
legislative developments, changes in tax and other laws and the effect of changes in general economic
conditions, the risk that a condition to closing of the transaction may not be satisfied, the risk that a regulatory
approval that may be required for the transaction is not obtained or is obtained subject to conditions that are
not anticipated and other risks to consummation of the transaction.
The actual results or performance by CVS or Caremark, and issues
relating to the transaction, could differ
materially from those expressed in, or implied by, any forward-looking statements relating to those matters. 
Accordingly, no assurances can be given that any of the events anticipated by the forward-looking statements
will transpire or occur, or if any of them do so, what impact they will have on the results of operations or
financial condition of CVS or Caremark, the combined company or the transaction.
This presentation includes certain non-GAAP financial measures as defined under SEC rules.  A reconciliation
to the most directly comparable GAAP measures can be found in the footnotes to the tables attached to
Caremark’s latest quarterly earnings press release and certain supplemental information is provided on
caremarkrx.com (applicable slides are footnoted).


3
CVS/Caremark Merger Overview
Stock-for-stock merger of equals
CVS will issue 1.67 shares for each CMX share
Management team:
Mac Crawford –
Chairman
Tom Ryan –
President and CEO
Dave Rickard –
CFO
Howard McLure –
President of PBM
Board Composition: 50/50 split
Corporate HQ:
Woonsocket, RI
PBM HQ:
Nashville, TN
Expected closing:
Within 6-12 months


4
Changing U.S. Healthcare Landscape
U.S. drug spend projected to continue to grow
Aging population driving higher drug utilization
Increased diagnosis and treatment of chronic disease
Increased use of high cost specialty drugs
Lack of adherence to therapy is costly
Payers asking consumers to make more decisions
Medicare Part D
Consumer-directed plans
Cost-shift to consumer in traditional plans
CVS/Caremark will be positioned to deliver high-quality, cost-
effective pharmacy services in a convenient, flexible manner


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Merger Creates Premier Pharmacy
Services Provider
Brings Caremark’s capabilities closer to the consumer
Creates platform to deliver innovative new services
Expected to yield better outcomes
More effective cost management for payers
Differentiated services for consumers and payers
Greater choice and convenience for consumers
Expected to accelerate growth for combined company
Accretive to EPS and cash flow


6
Caremark Strengths & Capabilities
Experienced management team
Integrated pharmacy services
PBM
Specialty
Disease Management
Analytics and Outcomes
Connectivity
Attractive, balanced customer mix
Fortune 1000 employers
Health plans
Medicare Part D
Financials
Highest EBITDA/Adj Rx
Strong cash flow & balance sheet


7
Caremark Q3 2006 Results
Expect 2006 EPS of $2.40 to 2.41*, +22%
*Guidance range excludes gain from settlement and treasury-lock
+31%
$0.67
Diluted EPS**
$855 M
YTD Cash Flow from Ops
+21%
$3.19
EBITDA / Adjusted Rx
+13%
$9.1 B
Revenue
** Q3 EPS includes $0.02 per share gain on treasury-lock
Slide contains Non-GAAP financial measures


8
CVS Strengths & Capabilities
#1 drugstore chain in America
Largest retail base -
6,200 stores
Leading presence in over 70% of Top 100 U.S. regions
Growing pharmacy business
Acquisition upside
revenue, shrink, operating margin
MinuteClinic
largest U.S. provider of retail-based health care
Strong front store business
ExtraCare, exclusive brands, CVS brand, strong same store sales


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Value for Employers & Health Plans
Bringing Caremark programs & capabilities closer to
the consumer will…
Enable participants & payers to make better decisions
Pharmacist will be able to discuss plan design alternatives
Economics of mail vs. retail dispensing will be clear
Provides participants with more choice and access
Enable more effective trend management
Higher disease management enrollment / adherence
Better formulary compliance
Improved generic substitution
Higher mail penetration


10
Value for Employers & Health Plans
Combining Caremark and CVS capabilities will…
Allow CVS/Caremark to offer differentiated services
Access to in-store or client-site MinuteClinics
Health assessments for participants
Real-time compliance & persistency programs
In-store consultation for injectable
therapies
Enhance Specialty business
Caremark has 30 years experience as clinical leader
CVS has 50+ specialty retail apothecaries
Better compliance and adherence
Better identification of patients for Accordant programs
Create purchasing synergies


11
Benefits to Consumers
Choice
Access to information about their plan designs at the pharmacy
counter will enable consumers to make cost-effective decisions
Services
Pharmacist can help maximize benefits
Pharmacist can better monitor patient safety
Improved compliance and outcomes
Access to MinuteClinics
Convenience
Pharmacist can make real-time changes at point of sale
Mail to home or local store
Rxs can be filled anywhere in 55,000+ retail store network


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Benefits to Consumers
Services
Pharmacist can help maximize benefits
Help choose the right branded medication
Highlight generic alternatives
Offer OTC step therapies
Consultation by phone or at local CVS store
Pharmacist can better monitor patient safety
CVS will now have full view of patient Rx history
Improved compliance and outcomes
On-site assistance with injectable
therapies
Recommend & enroll in disease management programs
Access to MinuteClinics


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Benefits to Shareholders
Approximately $400 million in annual synergies
Purchasing
Overhead
Exit 2008 at annualized rate of over $400 million in synergies
Accretive first full year after close
Significant free cash flow generation
Platform to develop new / differentiated services


14
Important Information for
Investors and Stockholders
Caremark and CVS will file a joint proxy statement/prospectus with the SEC in connection with the
proposed merger.  Caremark and CVS urge investors and stockholders to read the joint proxy
statement/prospectus when it becomes available and any other relevant documents filed by either party
with the SEC because they will contain important information.
Investors and stockholders will be able to obtain the joint proxy statement/prospectus and other documents
filed with the SEC free of charge at the website maintained by the SEC at www.sec.gov.  In addition,
documents filed with the SEC by Caremark will be available free of charge on the investor relations portion
of the Caremark website at www.caremark.com.  Documents filed with the SEC by CVS will be available
free of charge on the investor relations portion of the CVS website at http://investor.cvs.com.  Investors and
stockholders may obtain a detailed list of names, affiliations and interests of participants in the solicitation
of proxies of Caremark stockholders to approve the merger at the
following address: Georgeson
Shareholder Communications, Inc., 17 State Street, New York, New
York, 10004.
Caremark, and certain of its directors and executive officers may be deemed to be participants in the
solicitation of proxies from its stockholders in connection with
the merger.  A description of the interests of
Caremark’s directors and executive officers in Caremark is set forth in the proxy statement for Caremark’s
2006 annual meeting of stockholders, which was filed with the SEC on April 7, 2006.  CVS, and certain of
its directors and executive officers may be deemed to be participants in the solicitation of proxies from the
stockholders of CVS in connection with the merger.  A description of the interests of CVS’s
directors and
executive officers in CVS is set forth in the proxy statement for CVS’s
2006 annual meeting of stockholders,
which was filed with the SEC on March 24, 2006.  
If and to the extent that any of the Caremark or CVS participants will receive any additional benefits in
connection with the merger that are unknown as of the date of this filing, the details of those benefits will be
described in the definitive joint proxy statement/prospectus relating to the merger.  Investors and
stockholders can obtain more detailed information regarding the direct and indirect interests of Caremark’s
and CVS’s
directors and executive officers in the merger by reading the definitive joint proxy
statement/prospectus when it becomes available.


15
Howard McLure
Senior Executive Vice President & COO
Credit Suisse Healthcare Conference
November 16, 2006
Creating the Premier Pharmacy
Services Provider