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U.S. drug sales in 2007 grow at slowest rate since 1961

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USA Today
March 12, 2008

NEW YORK (Reuters) — Sales of prescription drugs in the United States grew just 3.8% in 2007, marking the lowest growth rate since 1961, according to data compiled by IMS Health and released Wednesday.
The 3.8% growth rate compares with 8% growth seen in 2006.

Total U.S. prescription drug sales reached $286.5 billion last year with slowing growth at least partly due to expirations of patents on lucrative medicines, which opened the door to cheaper generic versions.

Other reasons cited by IMS in its annual U.S. Pharmaceutical Market Performance Review were fewer new product approvals, safety concerns and the leveling of year-over-year growth from the Medicare Part D program.

"The moderating growth trend that began in 2001 resumed last year following the one-time impact on market growth in 2006 from the implementation of Medicare Part D," said Murray Aitken, IMS' senior vice president for health care insight..

Cholesterol drugs, such as Pfizer's (PFE) Lipitor, once again led all therapy groups with prescription sales of $18.4 billion in 2007 despite a 15.4% decline in sales, primarily due to the availability of cheaper generics.

Acid reflux medicines known as c, including AstraZeneca's (AZN) Nexium, ranked second with prescription sales of $14.1 billion and 2.8% growth.

Anti-psychotics, such as Eli Lilly's (LLY) Zyprexa, overtook antidepressants as the third largest therapeutic class with $13.1 billion in sales and a 12.1% growth rate, according to IMS, which provides industry data on drug prescriptions and sales.

Brand name drugs with about $17 billion in sales lost patent protection in 2007, helping drive prescription volume growth of 10% for generic medicines.

Generic drugs claimed 67.3% of U.S. prescriptions dispensed in 2007, IMS found.

IMS is forecasting compound annual U.S. pharmaceutical sales growth of 3% to 6% through 2012, noting that new biotech medicines and vaccines as well as the expected launch of a handful of drugs with at least $1 billion a year potential will partially offset major patent expirations.

About $13 billion in branded products are likely to start facing generic competition this year, IMS said.

"The U.S. pharmaceutical market has entered a new era — one characterized by more modest growth due to the continuing impact of new generics products, fewer and more narrowly indicated novel medications and closer scrutiny of safety issues," Aitken said.

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