Before we get started, we would like to remind you that this conference call contains forward-looking statements regarding future events and the future performance of Theravance. Forward-looking statements include anticipated results and other statements regarding Theravance's goals, expectations, strategies and beliefs. These statements are based upon information available to the company today and Theravance assumes no obligation to update these statements as circumstances change.
Future events and actual results could differ materially from those projected in the company's forward-looking statements. Additional information concerning factors that could cause results to differ materially from our forward-looking statements are described in greater detail in the company's form 10-Q filed with the SEC.
I will now briefly discuss results of the quarter ended September 30, 2010 and review guidance for the full year 2010 expenses.
For the quarter September 30, 2010, Theravance had a net loss of $21.2 million or $0.29 per share. Revenues totaled $5.3 million during the third quarter 2010 and consisted primarily of the amortization of deferred revenues from the company's partnerships with GSK and Astellas partially offset by write-off of $820,000 VIBATIV inventory that is no longer realizable.Included in revenue was royalty income of $422,000 based upon net VIBATIV sales of $2.3 million in to the wholesale channel. Total operating expenses excluding stock-based compensation were $20.7 million for the quarter and $63.4 million for the year-to-date. Cash, cash equivalent and marketable securities totaled $192.5 million as of September 30, 2010. This decrease of approximately $18.2 million during the third quarter of 2010 was primarily due to cash used in operations. We are reiterating our previous 2010 expense guidance of total expenses being at the upper end of the range of $80 million to $85 million. As a reminder, our guidance includes total research and development expense and total general and administrative expense, but excludes stock-based compensation.