Cephalon Conference Call Invitation

FRAZER, Pa., May 5 /PRNewswire-FirstCall/ -- Cephalon, Inc. (Nasdaq: CEPH) today announced plans to host an investor conference call at 5:30 p.m. EDT on May 6, 2008 to discuss the U.S. Food and Drug Administration advisory committee panel meeting held that day. The advisory committee panel is considering the company's supplemental New Drug Application for FENTORA(R) (fentanyl buccal tablet) [C-II] for the management of breakthrough pain in opioid-tolerant patients with chronic pain.

Investors can listen to the call live by logging on to the company's website at http://www.cephalon.com and clicking on "Investor Information," then "Webcast." Please click on the link and follow the prompts for registration and access.

If you are unable to listen to the live broadcast, an audio or webcast replay of the call will be available approximately two hours after the event until Midnight EDT, May 20, 2008. To listen to the audio replay, dial 719- 457-0820 and use the Conference Code Number 2046179.

Additional information presented on the conference call may be made available on the Investor Information page of the company's website.

SOURCE Cephalon, Inc.