Independent register of U.S. FDA drug recalls · updated Oct 10, 2026
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Wrong potency or content

Sub- or super-potent product, or a failed content-uniformity / assay test. You may receive too little or too much active ingredient - a direct dosing risk.

992 FDA drug recalls with this cause, newest first.

These recalls cover sub-potent or super-potent products, or a failed content-uniformity test - meaning some pills in the same batch held noticeably different amounts of active ingredient than others. Either way it is a direct dosing risk: too little to work, or too much and harmful. Thyroid hormones and compounded injectables are the classic examples, because their dose window is narrow.

Class I · High risk

Hyoscyamine Sulfate

Failed Content Uniformity Specifications: resulting in both superpotent and subpotent tablets.

Terminated Wrong potency / content Virtus Pharmaceuticals Opco II L NDC 76439-308-10 D-0214-2017
Class I · High risk

Hyoscyamine Sulfate

Failed Content Uniformity Specifications: resulting in both superpotent and subpotent tablets.

Terminated Wrong potency / content Virtus Pharmaceuticals Opco II L NDC 76439-307-10 D-0213-2017
Class I · High risk

Hyoscyamine Sulfate

Failed Content Uniformity Specifications: resulting in both superpotent and subpotent tablets.

Terminated Wrong potency / content Virtus Pharmaceuticals Opco II L NDC 76439-309-10 D-0212-2017
Class III · Low risk

Children's Qnasl 40 mcg

Failed Content Uniformity Specifications: out of specification test result for spray content uniformity.

Terminated Wrong potency / content Teva North America NDC 59310-206-08 D-1453-2016
Class II · Moderate risk

Trokendi XR

Superpotent Drug: Failure of assay specifications in the capsule.

Terminated Wrong potency / content Supernus Pharmaceuticals, Inc. NDC 17772-102-15 D-0112-2017