(CNN) – CVS is pulling a heartburn drug off the shelves over cancer concerns.
The pharmacy chain has stopped selling Zantac and its own generic version of the medication.
The move comes after the U.S. Food and Drug Administration said acid-reducing medicines like ranitidine contain low levels of an impurity that could cause cancer.
Despite CVS’ decision to stop selling the medicine, Zantac and its generic counterpart have not been recalled.
But CVS says customers who have already bought the products can return them for a refund.
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