Exhibit 99.1

Media Contact: Michael Polzin, 847-372-3502				http://news.walgreens.com
Investor Contacts: Rick Hans, CFA, 847-315-2385				@WalgreensNews
Ashish Kohli, CFA, 847-315-3810				facebook.com/Walgreens

FOR IMMEDIATE RELEASE

Walgreen Co. Reports Fiscal 2013 Second Quarter Results

DEERFIELD, Ill., March 19, 2013 – Walgreen Co. (NYSE, NASDAQ: WAG) today announced earnings and sales results for the second quarter and first half of fiscal year 2013 ended Feb. 28.

Net earnings determined in accordance with generally accepted accounting principles (GAAP) for the fiscal 2013 second quarter were $756 million or 79 cents per diluted share, compared with $683 million or 78 cents per diluted share in the year-ago quarter. Last year’s results benefited from one extra day versus the current year because of leap year.

Adjusted fiscal 2013 second quarter net earnings were $915 million or 96 cents per diluted share, compared with adjusted net earnings of $767 million or 88 cents per diluted share in the year-ago quarter. This year’s adjusted second quarter results exclude the negative impacts of 12 cents per diluted share in acquisition related items, and 5 cents per diluted share from the quarter’s LIFO provision.

“We are pleased with the quarter’s results as we saw substantial strength in our pharmacy performance, leading to strong earnings growth,” said Walgreens President and CEO Greg Wasson. “With our Balance™ Rewards program now totaling more than 60 million enrollments, our preferred status with four national Medicare Part D plan sponsors and our very successful flu shot program this year, our customers are responding to our purpose to help them get, stay and live well.”

Net earnings for the first half of fiscal 2013 ended Feb. 28 determined in accordance with GAAP were $1.17 billion or $1.23 per diluted share, compared with $1.24 billion or $1.41 per diluted share in the first half of fiscal 2012.

Adjusted net earnings for the first half of fiscal 2013 were $1.47 billion or $1.54 per diluted share, compared with adjusted net earnings of $1.39 billion or $1.59 per diluted share in the first half of fiscal 2012. This year’s adjusted first-half results exclude the negative impacts of 18 cents per diluted share in acquisition related items and 8 cents per diluted share from the first half’s LIFO provision. Special items in the first half of the year included 3 cents per diluted share in costs related to Hurricane Sandy and 3 cents per diluted share in acquisition-related costs, offset by 1-cent per diluted share in additional proceeds from the 2011 sale of the company’s pharmacy benefit manager business.

Walgreens joint synergy program with its strategic partner, Alliance Boots, continues to be on track to deliver its first-year target of $100-$150 million in combined synergies. “Alliance Boots contribution to our results was in line with our expectations this quarter, and we anticipate that to continue in the second half of our fiscal year,” said Wasson.

The two companies also announced earlier today a strategic, long-term relationship with AmerisourceBergen, one of North America’s largest pharmaceutical services companies. Under the agreement, Walgreens will expand its existing relationship with AmerisourceBergen into a 10-year comprehensive primary distribution agreement for branded and generic pharmaceutical products. In addition, Walgreens and Alliance Boots will collaborate with AmerisourceBergen on global supply chain opportunities and will have rights to acquire a minority equity position in AmerisourceBergen.

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Wasson said, “We believe this relationship will create a wide range of opportunities and innovations in the rapidly changing U.S. and global health care environment that we expect will benefit all of our stakeholders.”

FINANCIAL HIGHLIGHTS

Sales

Second quarter sales were flat compared with the prior-year quarter at $18.65 billion, while first half sales decreased 2.3 percent to $35.96 billion. Front-end comparable store sales (those open at least a year) decreased 2.6 percent in the second quarter, customer traffic in comparable stores decreased 5.2 percent and basket size increased 2.8 percent, while total sales in comparable stores decreased 2.6 percent. All second-quarter comparable store sales and prescription figures include 29 days in February 2012.

Prescription sales, which accounted for 61.1 percent of sales in the quarter, were flat, while prescription sales in comparable stores decreased 2.7 percent. The company filled 208 million prescriptions in the quarter, an increase of 6.0 percent over last year’s second quarter. Prescriptions filled in comparable stores increased 4.3 percent in the quarter. As of Feb. 28, Walgreens increased its retail prescription market share 50 basis points from the end of its fiscal 2013 first quarter on Nov. 30, 2012, to 19.2 percent.

Flu shots administered at pharmacies and clinics this flu season through Feb. 28 totaled 7.0 million compared with 5.5 million a year ago.

Gross Profit and SG&A

Total gross profit dollars increased $218 million, or 4.0 percent, compared with the year-ago second quarter, with gross profit margins increasing 1.2 percentage points versus the year-ago quarter to 30.1 as a percentage of sales. The growth in margins was driven primarily by an increase in generic prescription drugs dispensed. Front-end margins also increased as the company progressed on its pricing and promotion strategy. The LIFO provision was $72 million this year, the same as the year-ago quarter.

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Selling, general and administrative expense dollars increased $213 million, or 5.0 percent, compared with the year-ago quarter, including 0.5 percentage point for acquisition-related costs and 0.3 percentage point for other acquisition-related amortization.

In the second quarter, the company opened or acquired 29 new drugstores compared with 35 in the year-ago quarter.

Walgreens also delivered operating and free cash flow of $1.2 billion and $953 million, respectively, in the second quarter.

Other second quarter highlights

At Feb. 28, Walgreens operated 8,537 locations in all 50 states, the District of Columbia, Puerto Rico and Guam. The company has 8,072 drugstores nationwide, 231 more than a year ago. Walgreens also operates worksite health and wellness centers, infusion and respiratory services facilities, specialty pharmacies and mail service facilities. Its Take Care Health Systems subsidiary manages more than 700 in-store convenient care clinics and worksite health and wellness centers.

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Walgreens will hold a one-hour conference call to discuss the second quarter results beginning at 8:30 a.m. Eastern time today, March 19. The conference call will be simulcast through Walgreens investor relations website at: http://investor.walgreens.com. A replay of the conference call will be archived on the website for 12 months after the call. A podcast also will be available on the investor relations website.

The replay also will be available from 11:30 a.m. Eastern time, March 19 through March 26 by calling 855-859-2056 within the U.S. and Canada, or 404-537-3406 outside the U.S. and Canada, using replay code 24758159.

Also, please refer to today’s separate release for additional information on Walgreens and Alliance Boots new, strategic long-term relationship with AmerisourceBergen that expands Walgreens existing relationship, provides for collaboration between AmerisourceBergen, Walgreens and Alliance Boots on global supply chain opportunities and gives Walgreens and Alliance Boots rights to acquire a minority equity position in AmerisourceBergen.

Cautionary Note Regarding Forward-Looking Statements. Statements in this release that are not historical, including, without limitation, estimates of future financial and operating performance, including the amounts and timing of future accretion and synergies, are forward-looking statements made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. Words such as “expect,” “likely,” “outlook,” “forecast, “would,” “could,” “should,” “can,” “will,” “project,” “intend,” “plan,” “goal,” “target,” “continue,” “sustain,” “synergy,” “on track,” “believe,” “seek,” “estimate,” “anticipate,” “may,” “possible,” “assume,” variations of such words and similar expressions are intended to identify such forward-looking statements. These forward-looking statements are not guarantees of future performance and involve risks, assumptions and uncertainties, including, but not limited to, those relating to our commercial agreement with AmerisourceBergen, the arrangements and transactions contemplated by our framework agreement with AmerisourceBergen and Alliance Boots and their possible effects, the Purchase and Option Agreement and other agreements relating to our strategic partnership with Alliance Boots, the arrangements and transactions contemplated thereby and their possible effects, the parties’ ability to realize anticipated synergies and achieve anticipated financial results, the risks associated with transitions in supply arrangements, the risks associated with international business operations, the risks associated with governance and control matters, whether the option to acquire the remainder of the Alliance Boots equity interest will be exercised and the financial ramifications thereof, the risks associated with potential equity investments in AmerisourceBergen including whether the warrants to invest in AmerisourceBergen will be exercised and the financial ramifications thereof, changes in vendor, payer and customer relationships and terms, changes in network participation, levels of business with Express Scripts customers, the implementation, operation and growth of our customer loyalty program, changes in economic and market conditions, competition, risks associated with new business areas and activities, risks associated with acquisitions, joint ventures and strategic investments, the ability to realize anticipated results from capital expenditures and cost reduction initiatives, outcomes of legal and regulatory matters, and changes in legislation or regulations. These and other risks, assumptions and uncertainties are described in Item 1A (Risk Factors) of our most recent Annual Report on Form 10-K, which is incorporated herein by reference, and in other documents that we file or furnish with the Securities and Exchange Commission. Should one or more of these risks or uncertainties materialize, or should underlying assumptions prove incorrect, actual results may vary materially from those indicated or anticipated by such forward-looking statements. Accordingly, you are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date they are made. Except to the extent required by law, Walgreens does not undertake, and expressly disclaims, any duty or obligation to update publicly any forward-looking statement after the initial distribution of this release, whether as a result of new information, future events, changes in assumptions or otherwise.

Please refer to the supplemental information presented below for reconciliations of the non-GAAP financial measures used in this release to the most comparable GAAP financial measure and related disclosures

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WALGREEN CO. AND SUBSIDIARIES

CONSOLIDATED CONDENSED STATEMENTS OF EARNINGS

(UNAUDITED)

(In Millions, Except Per Share Amounts)

Fiscal 2013 six month period includes a LIFO provision of $127 million versus $117 million in the previous year.

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WALGREEN CO. AND SUBSIDIARIES

CONSOLIDATED CONDENSED BALANCE SHEETS

(UNAUDITED AND SUBJECT TO RECLASSIFICATION)

(In Millions)

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WALGREEN CO. AND SUBSIDIARIES

CONSOLIDATED CONDENSED STATEMENTS OF CASH FLOWS

(UNAUDITED AND SUBJECT TO RECLASSIFICATION)

(In Millions)

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WALGREEN CO. AND SUBSIDIARIES

SUPPLEMENTAL INFORMATION (UNAUDITED)

RECONCILIATION OF NON-GAAP FINANCIAL MEASURES

(In millions, except per share amounts)

The following information provides reconciliations of the supplemental non-GAAP financial measures, as defined under SEC rules, presented in this press release to the most directly comparable financial measures calculated and presented in accordance with generally accepted accounting principles in the United States (GAAP). The company has provided these non-GAAP financial measures in the press release, which are not calculated or presented in accordance with GAAP, as supplemental information and in addition to the financial measures that are calculated and presented in accordance with GAAP. These supplemental non-GAAP financial measures are presented because management has evaluated the company’s financial results both including and excluding the adjusted items and believes that the supplemental non-GAAP financial measures presented provide additional perspective and insights when analyzing the core operating performance of the Company’s business from period to period and trends in the company’s historical operating results. These supplemental non-GAAP financial measures should not be considered superior to, as a substitute for or as an alternative to, and should be considered in conjunction with, the GAAP financial measures presented in the press release.

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