Approval for Zelnorm, a treatment for painful constipation known as irritable bowel syndrome, was delayed on safety concerns.

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Add in the various over-the-counter remedies for flatulence, constipation, diarrhoea, hay fever and the common cold, and the average American might seem to be a pill-popping hypochondriac.

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But Zelnorm is the only treatment approved for IBS marked by constipation.

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Lotronex was for preventing diarrhea, not constipation, but the doctors still may be shy about prescribing Zelnorm.

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The first drug for irritable bowel syndrome marked by constipation beat a year-long regulatory battle.

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The SEC and the Justice Department said the men traded shares dating back to 2006 of companies whose drugs were used for colon cancer, schizophrenia, insomnia, severe constipation, osteoarthritis and heart disease.

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"This study provides further evidence that Zelnorm is a safe and effective treatment for IBS patients, who suffer with abdominal pain, bloating and constipation, " said John F.

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