Net Product Sales

EYLEA^® net product sales in the United States totaled $414.8 million and $329.8 million for the three months ended June 30, 2014 and 2013, respectively, and $773.8 million and $643.7 million for the six months ended June 30, 2014 and 2013, respectively. In addition, ARCALYST^® net product sales totaled $3.2 million and $4.1 million for the three months ended June 30, 2014 and 2013, respectively, and $6.6 million and $8.9 million for the six months ended June 30, 2014 and 2013, respectively.

The Company recorded 73% and 76% for the three months ended June 30, 2014 and 2013, respectively, and 76% and 77% for the six months ended June 30, 2014 and 2013, respectively, of its total gross product revenue from sales to Besse Medical, a subsidiary of AmerisourceBergen Corporation.

Revenue from product sales is recorded net of applicable provisions for rebates and chargebacks under governmental programs (including Medicaid), distribution-related fees, prompt pay discounts, and other sales-related deductions. The following table summarizes the provisions, and credits/payments, for these sales-related deductions during the six months ended June 30, 2014.



	Rebates & Chargebacks			Distribution- Related Fees			Other Sales- Related Deductions			Total
Balance as of December 31, 2013	$	4,400		$	19,663		$	538		$	24,601
Provision related to current period sales	14,817			36,206			818			51,841
Credits/payments	(15,077		)	(35,449		)	(834		)	(51,360		)
Balance as of June 30, 2014	$	4,140		$	20,420		$	522		$	25,082