The SSRI antidepressant makers are desperate to find new customers, so they recently have been focusing on capturing groups for which the drugs were usually considered off limits. The latest marketing coup managed to open up sales to roughly 614,000 American pilots. Under a new policy announced on April 5, 2010, pilots diagnosed with depression can seek permission from the Federal Aviation Administration to take one of four SSRIs, including Eli Lilly’s Prozac, Pfizer’s Zoloft, and Forest Laboratories’ Celexa and Lexapro.