After that, Finkelstein told Gongaware "he thought Jackson had an opiate dependency problem, " the filing said.

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Whenever we witness or directly engage in pro-social behavior, we produce opiate-like neurochemicals that relax us and amplify our cooperative tendencies.

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Americans consume 80% of opiate painkillers produced in the world, according to congressional testimony by the American Society of Interventional Pain Physicians.

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While Covidien has a large pharmaceutical business--it's the largest U.S. manufacturer of acetaminophen, the ingredient in Tylenol, and opiate painkillers--Meelia isn't girding to compete with drug giants like Merck.

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Alkermes is starting late-stage clinical trials of Vivitrex, an injectable form of naltroxene--an FDA-approved drug for the treatment of opiate and alcohol dependence, and it has several other drugs in development.

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