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February 6, 2017 04:00 am

Studies Link Some Stomach Drugs To Alzheimer's Disease and Kidney Problems

While the recommended dosage for Nexium, Prevacid and Prilose is just two weeks, doctors often advise patients to continue taking them for years. But now Scientific American reports that "Chronic use of popular heartburn medicines may be riskier than was thought," citing two papers linking the drugs to an increase risk of dementia, including Alzheimer's disease, and a greater risk of kidney problems.schwit1 quotes their report:The papers did not prove that PPIs cause the problems. But some researchers have nonetheless suggested possible mechanisms by which long-term use of the drugs could trigger dementia or kidney problems. A reduction in vitamin B12, for example, might leave the brain more vulnerable to damage, says Britta Haenisch, an author of the JAMA Neurology study and a neuropharmacologist at the Bonn campus of the German Center for Neurodegenerative Diseases. Last spring clinicians at the Houston Methodist Research Institute reported another plausible explanation for how PPIs might lead to these unexpected health issues: they picked up signs that the drugs act not only in the stomach but elsewhere in the body, too. The article ends on an ambiguous note. "Without conclusive data, physicians and patients have to balance the need to prevent the ill effects of excess stomach acid and reflux with the desire to avoid potentially serious -- if theoretical -- side effects from long-term use of PPIs."

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