IntelGenx Corp. Receives Notice of Allowance for Bupropion Patent

SAINT LAURENT, QUEBEC--(Marketwire - January 21, 2010) - IntelGenx Corp. (TSX VENTURE: IGX) (OTCBB: IGXT) (“IntelGenx”) today announced that the U.S. Patent and Trademark Office (“USPTO”) has issued a formal Notice of Allowance for a key patent application protecting IntelGenx’s CPI-300, a novel, high strength formulation of bupropion hydrochloride (“HCl”), the active ingredient in Wellbutrin XL®.

The patent entitled “Sustained-Release Bupropion and Bupropion/Mecamylamine Tablets” discloses the formulation of pharmaceutical tablets containing sustained-release granules of bupropion HCl distributed in a sustained-release matrix. The patent will ultimately provide broad protection for CPI-300 until 2027 (twenty years from the filing date) and upon regulatory approval be listed in the U.S. Food and Drug Administration’s (“FDA”) Orange Book.

“This Notice of Allowance demonstrates IntelGenx’s ability to successfully develop and patent novel products through our proprietary VersaTab technology,” said Dr. Horst G. Zerbe, President and Chief Executive Officer of IntelGenx. “We believe CPI-300 could fill a significant need in the lucrative bupropion market. With the potential to be the first and only single-tablet high-dose form of bupropion HCl on the market, we believe CPI-300’s convenience and patient compliance advantages could make it a very successful brand.”

IntelGenx is currently awaiting approval from the FDA for its New Drug Application (“NDA”) for CPI-300. IntelGenx and Cary Pharmaceuticals entered into a Collaborative Agreement in November 2007 to jointly develop and commercialize CPI-300 using IntelGenx’s proprietary oral VersaTab delivery technology. Cary Pharmaceuticals serves as the NDA applicant for CPI-300.

About IntelGenx Corp.:

IntelGenx Corp. is a drug delivery company focused on the development of oral controlled-release products as well as novel rapidly disintegrating delivery systems. IntelGenx uses its unique multiple layer delivery system to provide zero-order release of active drugs in the gastrointestinal tract. IntelGenx has also developed novel delivery technologies for the rapid delivery of pharmaceutically active substances in the oral cavity based on its experience with rapidly disintegrating films. IntelGenx’s research and development pipeline includes products for the treatment of pain, hypertension, osteoarthritis and depressive disorders. More information is available about the company at www.intelgenx.com.

Forward Looking Statements:

This document may contain forward-looking information about IntelGenx’s operating results and business prospects that involve substantial risks and uncertainties. Statements that are not purely historical are forward-looking statements within the meaning of Section 21E of the Securities Exchange Act of 1934, as amended, and Section 27A of the Securities Act of 1933, as amended. These statements include, but are not limited to, statements about IntelGenx’s plans, objectives, expectations, strategies, intentions or other characterizations of future events or circumstances and are generally identified by the words “may,” “expects,” “anticipates,” “intends,” “plans,” “believes,” “seeks,” “estimates,” “could,” “would,” and similar expressions. All forward looking statements are expressly qualified in their entirety by this cautionary statement. Because these forward-looking statements are subject to a number of risks and uncertainties, IntelGenx’s actual results could differ materially from those expressed or implied by these forward looking statements. Factors that could cause or contribute to such differences include, but are not limited to, those discussed under the heading “Risk Factors” in IntelGenx’s annual report on Form 10-K for the fiscal year ended December 31, 2008, filed with the United States Securities and Exchange Commission and available at www.sec.gov, and also filed with Canadian securities regulatory authorities and www.sedar.com. IntelGenx assumes no obligation to update any such forward-looking statements.

Each of the TSX Venture Exchange and OTC Bulletin Board has neither approved nor disapproved the contents of this press release.