This week, the U.S. Food and Drug Administration (FDA) alerted health-care professionals and patients of a voluntary recall of 14 lots of prescription ranitidine capsules distributed by Sandoz Inc, used to decrease the amount of acid created by the stomach. This recall is due to a nitrosamine impurity—N-nitrosodimethylamine (NDMA)—that was found in the recalled medicine. NDMA is classified as a probable human carcinogen.
“The FDA is committed to ensuring that the medicines Americans take are safe and effective. We began testing ranitidine products immediately after we learned of the potential impurity. When we identify lapses in the quality of drugs that pose potential risks for patients, the FDA makes all efforts to understand the issue and provide our best recommendation to the public as quickly and accurately as possible,” said Acting FDA Commissioner Ned Sharpless, MD. “We will continue to investigate and work to ensure these types of impurities do not exceed acceptable limit so that patients can continue taking the medicines they need without concern.”
Ranitidine is an over-the-counter and prescription drug. Ranitidine is a histamine-2 blocker, which decreases the amount of acid created by the stomach. Over-the-counter ranitidine is approved to prevent and relieve heartburn associated with acid ingestion and sour stomach. Prescription ranitidine is approved for multiple indications, including treatment and prevention of ulcers of the stomach and intestines and treatment of gastroesophageal reflux disease.
The FDA provided the following information for patients and health-care professionals on the recall of ranitidine capsules produced by Sandoz:
The agency is testing ranitidine products from multiple manufacturers and assessing the possible effect on patients who have been taking ranitidine, as well as what manufacturers can do to reduce or eliminate nitrosamine in drugs.
As part of the FDA’s investigation, the agency recently posted a testing protocol, which can be used by regulators and industry to detect nitrosamine impurities in ranitidine. The FDA is asking companies to begin their own laboratory testing to examine levels of NDMA in ranitidine and to send samples of ranitidine to the FDA to be tested by agency scientists.
The FDA and manufacturers of ranitidine will take appropriate measures based on the results of this ongoing investigation and the agency will provide additional information when it becomes available.The content in this post has not been reviewed by the American Society of Clinical Oncology, Inc. (ASCO®) and does not necessarily reflect the ideas and opinions of ASCO®.