Once per day, the rogue can create 1 or more doses of drow poison by spending 25 gp per dose; this process takes 30 minutes of work, regardless of the number of doses she creates. She can create no more than 1 dose for every 3 rogue levels she has (minimum 1 dose). Creating drow poison in this way does not require a skill check, but the created poison spoils if not used within 24 hours. (This spoilage means that selling doses of this poison for a profit to unsuspecting merchants might well result in unwanted repercussions and reprisals!)
Pathfinder Roleplaying Game Adventurer’s Guide © 2017, Paizo Inc.; Authors: Benjamin Bruck, John Compton, Crystal Frasier, Tim Hitchcock, Jenny Jarzabski, Isabelle Lee, Joe Pasini, Jessica Price, David Schwartz, and Josh Vogt.