Person of the Year, Vera Twomey, will be among the guests at tonight's Longford Says Yes to Medical Cannabis meeting, which takes place in the Family Centre behind St Mel's Cathedral at 8pm.
Ahead of the meeting, Ms Twomey took to Facebook to show her support for the campaign.
Also speaking at the event will be TD Gino Kenny, and Kenny Tynan who defied the odds and survived a brain tumour.
Subscribe or register today to discover more from DonegalLive.ie
Buy the e-paper of the Donegal Democrat, Donegal People's Press, Donegal Post and Inish Times here for instant access to Donegal's premier news titles.
Keep up with the latest news from Donegal with our daily newsletter featuring the most important stories of the day delivered to your inbox every evening at 5pm.