Post-traumatic stress disorder (PTSD) is a chronic disorder that arises after severely stressful events. PTSD is characterized by its disabling effects—hyperarousal, avoidance, and re-experiencing symptoms. Affecting an estimated 7.8% of the general population, PTSD is particularly diagnosed among people who have experienced interpersonal violence. Survivors who suffer from PTSD do not have many options in reducing PTSD symptoms, because few modern pharmacotherapies—treatments using drugs—are effective.