Under the program, patients take a dose of ecstasy and then are guided through eight hours of intensive psychotherapy. The drug, which enhances feelings of empathy and euphoria while blocking the brain's ability to process fear, can break down barriers that prevent patients from opening up to therapists. The study has so far shown positive results. A Phase 2 trial near Charleston, South Carolina, resulted in 68 percent of participants no longer showing PTSD symptoms after their second session. Of the 26 participants in that study, 22 were veterans. Read more on Military.com.