In 2009, the FDA issued an alert regarding side effects of metoclopramide, which is a main ingredient in Reglan. A serious side effect of the drug is tardive dyskinesia, which is a very serious disorder. Reglan is used to treat gastrointestinal disorders. Healthcare officials were alerted by the FDA that Reglan would require a black box warning about the risk of long-term or high-dose use on its label. A link has been shown between long-term use of metoclopramide and tardive dyskinesia, which involves involuntary and repetitive body movements. The symptoms may still occur, even if the drug has not been used in a while. There is no known treatment for tardive dyskinesia, and it is usually not reversible. Baxter International makes Reglan.
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