It seems like Ken Levine has come up with some new plasmids to distribute to gamers. A forum member at the 2K Games forum has found some info on those addictive little power ups. Although this is unofficial its sort of hard to call BS when it was found in PC Bioshock's install files.
;Downloadable content announcement
ManualTopicName=PlasmidPack1
-----
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;Downloadable content announcement
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
[PlasmidPack1]
TopicType=Gene Tonics Unlocked!
FriendlyName=(Downloaded Content)
bHidden=true
Entry=\nNEW FROM RYAN INDUSTRIES!
Entry=\nHaving concluded clinical trials on four new Genetic Improvements, Ryan Industries is proud to announce the general release of their newest products:
Entry=\nMachine Buster
Entry=Vending Expert
Entry=Sonic Boom
Entry=EVE Saver
Entry=\nLook for them at a Gatherer's Garden near you![ShockGame.AirBlast]
FriendlyName=Sonic Boom
Description=(Downloaded) Hurls creatures and objects BACK with a BLAST of force.
LockedContent=true
-Matthew "Webnet" Moore-