Columbia Laboratories to Discuss First Quarter 2011 Financial Results on May 5, 2011, Conference Call

LIVINGSTON, NJ - April 28, 2011 - Columbia Laboratories, Inc. (Nasdaq: CBRX) will hold a conference call on May 5, 2011, to discuss financial results of the first quarter ended March 31, 2011. Frank C. Condella, Jr., president and chief executive officer, and Lawrence Gyenes, senior vice president, chief financial officer and treasurer of Columbia Laboratories, will host the call.

Date:   Thursday, May 5, 2011
Time:   10:00 am EDT
Dial-in numbers: (877) 303-9483 (U.S. & Canada) or (760) 666-3584
Live webcast:

www.columbialabs.com, under 'Investor'

The teleconference replay will be available two hours after completion through Thursday, May 12, 2011, at (800) 642-1687 (U.S. & Canada) or (706) 645-9291. The conference ID for the replay is 63019982. The archived webcast will be available for one year on the Company's website, www.columbialabs.com, in the 'Investor' section under 'Events'.

About Columbia Laboratories

Columbia Laboratories, Inc. is developing products that utilize its novel bioadhesive drug delivery technologies to optimize drug delivery in a controlled, sustained manner. For more information, please visit www.columbialabs.com.

Contact:

Lawrence A. Gyenes
Senior Vice President, CFO & Treasurer
(973) 486-8860
Seth Lewis
Vice President The Trout Group LLC
(646) 378 2952