Donepezil half life. Home › Forums › XDC Gaming › Gaming – general › Donepezil half life. This topic has 0 replies, 1 voice, and was last updated 15 years, 5 months ago by XDCsPUNKer. Log In Register Lost Password Viewing 1 post (of 1 total) Author Posts June 12, 2009 at 5:14 pm #18812 XDCsPUNKerParticipant Wha??? theres a Halflife 3 you say? 🙄 Author Posts Log In Register Lost Password Viewing 1 post (of 1 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In