Aside from restrictions placed on it by the FDA (for instance, it will be sold only through a single mail order pharmacy), the drug causes the buildup of fat in the liver, a warning sign that it may also cause liver damage.

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Gemayel says that aside from the giveaway, Roche has a clear marketing message for the new treatment, which combats hepatitis C virus and the chronic liver disease it causes.

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If ingested, it causes nausea, vomiting and internal bleeding of the stomach and intestines, followed by failure of the liver, spleen and kidneys, and death by collapse of the circulatory system.

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