Sgt. Eric Layne’s death was not pretty. A few months after being prescribed a drug cocktail with the antidepressant Paxil, the mood stabilizer Klonopin and AstraZeneca’s controversial antipsychotic drug Seroquel, the Iraq war veteran was “suffering from incontinence, severe depression [and] continuous headaches,” according to his widow, Janette Layne, at FDA hearings for new Seroquel approvals last year.