HispanicBusiness

Conference Call

At 8:00am Eastern Time today, Horizon's management will host a live conference call and webcast to review the Company's financial and operating results and provide a general business update.

The live webcast and a replay may be accessed by visiting Horizon's website at http://ir.horizon-pharma.com. Please connect to the Company's website at least 15 minutes prior to the live webcast to ensure adequate time for any software download that may be needed to access the webcast. Alternatively, please call 1-888-338-8373 (U.S.) or 973-872-3000 (international) to listen to the conference call. The conference ID number for the live call is 35984880. Telephone replay will be available approximately two hours after the call. To access the replay, please call 1-855-859-2056 (U.S.) or 404-537-3406 (international). The conference ID number for the replay is 35984880.

About Horizon Pharma

Horizon Pharma, Inc. is a specialty pharmaceutical company that has developed and is commercializing DUEXIS and RAYOS/LODOTRA, both of which target unmet therapeutic needs in arthritis, pain and inflammatory diseases. The Company's strategy is to develop, acquire, in-license and/or co-promote additional innovative medicines where it can execute a targeted commercial strategy in specific therapeutic areas while taking advantage of its commercial strengths and the infrastructure the Company has put in place. For more information, please visit www.horizonpharma.com.

Forward-Looking Statements

This press release contains forward-looking statements, including statements regarding the on-going commercial launches of DUEXIS and RAYOS, trends with respect to total prescription dollar value of DUEXIS, the momentum for DUEXIS and RAYOS, and the effect in the second quarter of acceleration in DUEXIS revenue as a result of increasing the value captured per prescription in March of this year. These forward-looking statements are based on management's expectations and assumptions as of the date of this press release, and actual results may differ materially from those in these forward-looking statements as a result of various factors. These factors include, but are not limited to risks regarding Horizon's ability to commercialize products successfully, whether commercial data regarding DUEXIS and RAYOS in the United States for any historic periods are indicative of future results, the impact of pricing decisions on product revenues, Horizon's ability to successfully manage contract sales and marketing personnel, Horizon's ability to comply with post-approval regulatory requirements and the need to potentially obtain additional financing to successfully commercialize or further develop DUEXIS and RAYOS/LODOTRA. For a further description of these and other risks facing the Company, please see the risk factors described in the Company's filings with the United States Securities and Exchange Commission, including those factors discussed under the caption "Risk Factors" in those filings. Forward-looking statements speak only as of the date of this press release and the Company undertakes no obligation to update or revise these statements, except as may be required by law.