CONDENSED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Share data	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Revenues:
Product sales	$ 16,153	$ 11,657	$ 31,464	$ 24,257
Royalties	67	91	232	179
License and collaborative revenue	4,998	12,671	72,623	15,342
Total revenues	21,218	24,419	104,319	39,778
Costs and expenses:
Cost of sales	2,140	2,981	3,775	4,462
Research and development expense	4,043	4,570	9,197	9,758
Selling, general and administrative expense:
Promotion fee expense	11,055	8,099	21,317	16,978
Other selling, general and administrative expense	9,976	4,541	17,216	8,091
Total selling, general and administrative expense	21,031	12,640	38,533	25,069
Gain on settlement agreement	0	0	(40,000)	0
Total costs and expenses	27,214	20,191	11,505	39,289
Income (loss) from operations	(5,996)	4,228	92,814	489
Other income (expense):
Interest and other income	357	56	436	150
Interest expense	(39)	(157)	(109)	(340)
Total other income (expense)	318	(101)	327	(190)
Net income (loss) before income taxes	(5,678)	4,127	93,141	299
Benefit from (Provision for) income taxes	(1)	(1)	(3)	(2)
Net income (loss)	$ (5,679)	$ 4,126	$ 93,138	$ 297
Basic net income (loss) per common share	$ (0.11)	$ 0.08	$ 1.73	$ 0.01
Diluted net income (loss) per common share	$ (0.11)	$ 0.08	$ 1.67	$ 0.01
Shares used in computing basic net income (loss) per common share	54,056,064	52,436,681	53,706,617	52,368,085
Shares used in computing diluted net income (loss) per common share	54,056,064	53,103,623	55,883,346	52,918,507