FDA provides update on its ongoing investigation into ARB drug products; reports on finding of a new nitrosamine

The U.S. Food and Drug Administration is updating the public on the agency’s ongoing investigation surrounding the recent voluntary recalls of multiple generic angiotensin II receptor blocker (ARB) drug products used to treat high blood pressure and heart failure. Hetero Labs Ltd. in India has announced a recall of 87 lots of losartan potassium tablets (25 mg, 50 mg and 100 mg). The recalled losartan potassium tablets made by Hetero Labs and distributed by Camber Pharmaceuticals contain the impurity, N-Nitroso-N-methyl-4-aminobutyric acid (NMBA). The impurity is a known animal and potential human carcinogen. This is the first ARB recall resulting from...