You weaken the target’s defenses against poison. The target gains a –4 penalty on saves against poison, and poisons affecting the target continue for another 2 frequency increments (for example, black adder venom lasts 8 rounds instead of 6, and arsenic lasts for 6 minutes instead of 4). Attempts to cure the poisoned target with skill or magic take a –4 penalty.
Pathfinder Roleplaying Game Ultimate Magic. © 2011, Paizo Publishing, LLC; Authors: Jason Bulmahn, Tim Hitchcock, Colin McComb, Rob McCreary, Jason Nelson, Stephen Radney-MacFarland, Sean K Reynolds, Owen K.C. Stephens, and Russ Taylor.