Buffout Addiction

 is a form of addiction which can occur in Fallout, Fallout 2, Fallout 3, Fallout: New Vegas, and Fallout Tactics.

Fallout, Fallout 2, Fallout Tactics
"You've got the shakes."

Using Buffout carries a 25% chance to become addicted. The addiction lasts for a week, beginning 48 hours after consumption.

Fallout 3, Fallout: New Vegas
Using Buffout carries a 10% chance to become addicted.