But perhaps the most ambitious endeavor is in Atlanta, at Tikvah Therapeutics. Its CEO, Harold Shlevin, a pharmaceutical-company executive who founded the firm in 2006, tells me that Tikvah (Hebrew for "hope") is conducting clinical trials to get FDA approval to use DCS to treat panic disorders, PTSD, obsessive-compulsive disorder (OCD) and "a general catchall category for fears such as snakes, spiders and heights." Shlevin has enlisted a company called Virtually Better to create virtual-reality simulations, and he plans to release a DVD that will be packaged with DCS capsules. The DVD would feature simulations to address a variety of fears-the interior of a jetliner, for example, for fear of flying, or a crowded auditorium with the patient on center stage, for fear of public speaking. For OCD, Shlevin says, "we'd emphasize cleanliness, so we will have them touching a toilet seat." He expects to market the medication and DVDs to consumers in late 2009 or early 2010; it will available on a prescription-only basis from a psychiatrist.