The antacid ranitidine may be a human carcinogen and sales of OTC and Rx drugs containing the common heartburn ingredient should be stopped, according to a citizen petition an online pharmacy submitted to the US Food and Drug Administration.
Online Pharmacy Stirs Ranitidine Controversy With Petition To Halt Sales
After its tests showed ranitidine forms a nitrosamine impurity that is a probable carcinogen, Valisure asks FDA to suspend sales of antacid products containing the API. In citizen petition firm, online pharmacy also advises FDA to publish regulations requiring independent chemical testing, verification of drugs.

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