The latest release of Cyanide Poison Reminder is now available on Curse.com and Wowinterface.com.
The addon has been heavily worked on by Yoyosan who has tidied up the code and added much more functionality (such as greater control over warnings and a fantastic list of sound effects). Nice one!
I advise adding this to your list of recommended addons.
http://www.wowinterface.com/downloads/fileinfo.php?id=14318#comments