Psycho Addiction (Fallout Supplement)
From D&D Wiki
The world has changed for you slightly after constantly consuming Psycho and you got addicted to this chem making you even more dangerous. You feel light-headed.
Benefit: When addicted, the player character suffers a 2 point penalty to Strength and 10 to Damage Resistance..
Special: Psycho, Psychobuff and Psychojet have a 25%, 35% and 35% chance respectively to cause an addiction. The addiction can be cured by visiting a doctor, taking addictol or Fixer, eating a radscorpion egg omelette or drinking a refreshing beverage. .