Psycho (Fallout 3)

Background
In the Operation: Anchorage add-on, the origins of the chem are explored in more detail. The American field doctor in the simulation can give the player character Psycho before combat, and a holodisk can be found that details the creation and use of the drug. It is also revealed that it can cause dangerous, long-lasting side effects such as increased aggression.

Locations

 * At least one dose can be found in Silver's house.
 * Several doses can be found in the Super-Duper Mart.
 * Frequently found in raider establishments.
 * Sold by Doc Hoff, Cindy Cantelli, Ahzrukhal, Leo Stahl, and various other vendors.
 * Three can be stolen from A Quick Fix in Rivet City.
 * Four can be stolen from Cantelli's room in Rivet City.
 * Found on the corpses of wastelanders and Feral Ghouls.
 * Can be found on the corpses of Talon Company mercs and Raiders.
 * Sold by the wasteland junkie, along with Jet, Mentats and other addictive chems in a random encounter.
 * Given by a field doctor during the simulation. Additionally, two doses are found in the Command HQ tent.
 * Can be found on hunters.
 * One can be found on the ground of Kaelyn's Bed & Breakfast.