For first-half 2009, revenues were $21.9 billion, a decrease of 9% compared with the same period in 2008 and a decrease of 2% on a constant currency basis. Foreign exchange unfavorably impacted revenues by approximately $1.7 billion or 7%. U.S. revenues were $9.5 billion, a decrease of 7% compared with first-half 2008. International revenues were $12.4 billion, a decrease of 10% compared with the same period last year, and reflected operational growth of 2%, which was more than offset by the unfavorable impact of foreign exchange of 12%. U.S. revenues represented 43% of the total and international revenues represented 57% of the total, comparable with first-half 2008. In addition to foreign exchange, other factors that negatively impacted first-half 2009 revenues in comparison with first-half 2008 included the loss of U.S. exclusivity for Zyrtec in January 2008 and Camptosar in February 2008, the loss of exclusivity in Japan for Norvasc in July 2008, as well as the revenue declines for Lipitor, as a result of continued intense competition, and for Chantix/Champix, mainly due to label changes.
Business Revenues
Effective January 1, 2009, Pfizer expanded its operating model within the Pharmaceutical business to include five customer-focused units, in addition to its Animal Health business. During second-quarter 2009, all Pharmaceutical units and Animal Health generated revenue growth on a constant currency basis with the exception of the Established Products unit, which manages a portfolio of products that have generally lost patent protection or marketing exclusivity and that have an expected decline in revenues at this stage in their lifecycle.
Primary Care revenues for second-quarter 2009 were $5.1 billion, a 6% decline compared with $5.5 billion in the year-ago quarter. Operational growth of 1%, primarily driven by the strong international performance of Lyrica, was more than offset by the unfavorable impact of foreign exchange.
Specialty Care revenues for second-quarter 2009 were $1.4 billion, a 5% decrease compared with $1.5 billion in the same period last year. Operational growth of 2%, largely driven by the solid U.S performance of certain products, including Revatio and Geodon, was more than offset by the unfavorable impact of foreign exchange.
Oncology revenues for second-quarter 2009 were $352 million, an 8% decrease compared with $384 million in the prior-year quarter. Operational growth of 4%, due primarily to the strong performance in international markets of Sutent and Aromasin, was more than offset by the unfavorable impact of foreign exchange.
Established Products revenues for second-quarter 2009 were $1.6 billion, a 20% decline compared with $2.0 billion in the year-ago quarter, comprised of a 13% operational decline and a 7% foreign exchange decline. Since the products in this unit generally have lost patent protection or marketing exclusivity, revenues have declined. This unit was created in 2008 with the goal of recapturing value for these products in developed market geographies by progressively slowing the erosion of, and ultimately stabilizing, revenue and profit from established products. Supporting initiatives within the unit include programs designed to expand patient and payor access to this portfolio, to develop product enhancements, to expand the portfolio and to increase promotional efforts for targeted products.
Emerging Markets revenues for second-quarter 2009 were $1.5 billion, an 8% decrease compared with $1.7 billion in second-quarter 2008. These revenues include the revenue from both established products and patent-protected products sold in emerging markets. Operational growth of 9%, largely attributable to double-digit growth in high-priority countries, notably China and Turkey, was more than offset by the unfavorable impact of foreign exchange.
Animal Health revenues for second-quarter 2009 were $648 million, a 9% decline compared with $715 million in the year-ago quarter. Operational growth of 2%, primarily driven by the solid performance in emerging markets and for certain new products worldwide, was more than offset by the negative impact of foreign exchange.