GlaxoSmithKline Notice of Full Year Financial Results Announcement

PHILADELPHIA, Jan. 29 /PRNewswire-FirstCall/ -- On Thursday, February 5th, GlaxoSmithKline plc will announce its year end financial results for the year ended December 31, 2008. The announcement is scheduled for release to the London Stock Exchange at approximately 7:00 AM Eastern Standard Time (EST).

At 9:00 AM EST Andrew Witty, Chief Executive Officer, and Julian Heslop, Chief Financial Officer will hold a briefing meeting for analysts and investors. The meeting is available as a live webcast with synchronized slides on the GlaxoSmithKline corporate website www.gsk.com. Web participants can register for the event on www.gsk.com beginning January 29th.

To listen in to the live presentation and Q&A session by phone please dial:

The Year End Results announcement will be available on the website: www.gsk.com, just after 7:00 AM EST and copies of the presentation will be available on the website from 8:45 AM EST.

At approximately 8:00 PM EST the webcast will be available as a replay version. A link to this version will be accessible from the home page of www.gsk.com.

GlaxoSmithKline -- one of the world's leading research-based pharmaceutical and healthcare companies -- is committed to improving the quality of human life by enabling people to do more, feel better and live longer.

CONTACT: US Media inquiries, Nancy Pekarek, Kevin Colgan, or Mary Anne
Rhyne, all at +1-919-483-2839, or Sarah Alspach, +1-215-751-7709, all of
GlaxoSmithKline plc

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