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VYVANSE - ADHD
VYVANSE was launched in the US market in July 2007. Product sales for the three months to June 30, 2008 were $65.2 million (2007: $nil) representing a 20% increase compared to sales of $54.4 million in Q1 2008.
Product sales growth was driven by a 15% increase in prescription demand compared to Q1 2008 together with a price increase in May 2008. For the three months to June 30, 2008 VYVANSE's average quarterly market share was 7.4% (Q1 08: 6.1%) of the US ADHD market.
By July 18, 2008 VYVANSE had achieved a US ADHD average weekly market share of 8.2% based on weekly prescription volumes.
DAYTRANA - ADHD
Product sales for the three months to June 30, 2008 were $22.6 million (2007: $19.9 million). Prescriptions declined by 11% from the same period last year due to a reduction in DAYTRANA's average quarterly market share of the US ADHD market to 1.8% (2007: 2.2%).
Despite the decrease in prescriptions compared to 2007, sales of DAYTRANA grew 14% due to higher market growth, lower sales deductions and a price increase in January 2008.
On June 9, 2008 Shire announced a voluntary recall of a limited portion of DAYTRANA patches because certain patches did not meet their release liner removal specifications which may have resulted in some patients and caregivers having difficulties removing the liners. The voluntary recall was not due to safety issues. Shire and Noven Pharmaceuticals Inc. (the manufacturer of DAYTRANA) continue to pursue enhancements to the product and to work closely with the FDA to implement changes that may improve the usability of DAYTRANA. No interruption in the production of DAYTRANA is anticipated.
US oral mesalamine market share
Shire's average quarterly market share of the US oral mesalamine market
rose to 27.6% in the three months to June 30, 2008 (2007: 19.9%), driven by
the introduction of LIALDA in March 2007. The overall US oral me
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