Presenting at the Canaccord Genuity Conference

GW Pharmaceuticals to Present at the 33rd Annual Canaccord Genuity Growth Conference

London, UK, 8 August 2013: GW Pharmaceuticals plc (Nasdaq: GWPH, AIM: GWP, "GW," "the Company" or "the Group"), a biopharmaceutical company focused on discovering, developing and commercializing novel therapeutics from its proprietary cannabinoid product platform, announced that Justin Gover, GW's Chief Executive Officer, is scheduled to present at the 33rd Annual Canaccord Genuity Growth Conference on Wednesday, 14 August, 2013 at 2:00 p.m. ET. The conference will be held at the InterContinential Boston in Boston, MA.

A live audio webcast of the presentation will be available through GW's corporate website in the investor relations section at www.gwpharm.com.

About GW Pharmaceuticals plc

Founded in 1998, GW is a biopharmaceutical company focused on discovering, developing and commercializing novel therapeutics from its proprietary cannabinoid product platform in a broad range of disease areas. GW commercialized the world's first plant-derived cannabinoid prescription drug, Sativex®, which is approved for the treatment of spasticity due to multiple sclerosis in 22 countries. Sativex is also in Phase 3 clinical development as a potential treatment of pain in people with advanced cancer. This Phase 3 program is intended to support the submission of a New Drug Application for Sativex in cancer pain with the U.S. Food and Drug Administration and in other markets around the world. GW has established a world leading position in the development of plant-derived cannabinoid therapeutics and has a deep pipeline of additional cannabinoid product candidates, including two distinct compounds, GWP42004 and GWP42003, in Phase 2 clinical development for Type 2 diabetes and ulcerative colitis, respectively, and at least two additional programs expected to enter Phase 1 and Phase 2 clinical trials in the next 12 months. For further information, please visit www.gwpharm.com

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