Jazz Pharmaceuticals, Inc. To Announce Second Quarter 2007 Financial Results On August 9, 2007

Jazz Pharmaceuticals, Inc. (Nasdaq: JAZZ) announced that it will report its second quarter 2007 financial results on Thursday, August 9, 2007 following the close of the U.S. financial markets. Jazz Pharmaceuticals will host an investor conference call and live audio webcast to discuss the quarterly results and company updates on August 9, 2007 at 5:00 p.m. Eastern Time/2:00 p.m. Pacific Time.

The live webcast and press release may be accessed on Jazz Pharmaceuticals’ website at http://www.jazzpharmaceuticals.com. Please connect to the website at least 15 minutes prior to the conference call to ensure adequate time for any software downloads that may be necessary to listen to the webcast. An archived version of the webcast will be available through August 23, 2007.

Investors may participate in the conference call by dialing 1-800-299-0433 in the U.S., or 1-617-801-9712 outside the U.S., and entering passcode 23108551. A replay of this call will be available until August 23, 2007 at 1-888-286-8010 (U.S.), or 1-617-801-6888 (international), using the passcode 26350949.

The webcast is also being distributed through the Thomson StreetEvents Network to both institutional and individual investors. Individual investors can listen to the call at www.fulldisclosure.com and institutional investors can access the call via www.streetevents.com.