Hold On! That Previously Acceptable Level of Nitrosamine in Your Product is No Longer Acceptable!

Yesterday, the Agency expressed confidence that manufacturers of varenicline tablets containing the N‑nitroso-varenicline impurity can meet the FDA’s original acceptable intake limit of 37 ng or less per day. Their statement read:  “FDA is now confident in manufacturers’ ability to supply patients with varenicline containing the N-nitroso-varenicline impurity at or below the agency’s acceptable intake limit […]

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