Questcor Pharmaceuticals, Inc. (Headquarters) Tanks as Probe Into Promotional Practices Widens; Stock Down -13.94% at Market Close (October 30, 2013)

Published: Oct 30, 2013

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Questcor Pharmaceuticals Inc. reported Tuesday that its third-quarter net income jumped nearly 70 percent on increased use of its drugs. But the company disclosed that a regulatory investigation of its business has expanded, which sent its shares plunging in extended trading.

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