Aqua Pura

 is literally "Pure Water" that is available once the add-on Broken Steel is installed.

Drinking the water after choosing to infect it with the Modified FEV will result in a player debuff (-2 STR and -1 INT) and, if you drink too many, you will die (this is usually any more than two), so be careful.

Trivia

 * Aqua Pura is a brand of mineral water in the United Kingdom

Bugs

 * Giving any amount of Aqua Pura to Water Beggars will result in their death at the next map change, regardless of whether or not the Aqua Pura contains Modified FEV. (Confirmed, PC & Xbox 360)


 * Sometimes after drinking Aqua Pura a message will appear saying that "Aqua Pura has worn off". This is like when a chem wears off but there were no effects to begin with. This message may appear at random times, days after drinking Aqua Pura. (Confirmed, Xbox 360 and PC)