Independent register of U.S. FDA drug recalls · updated Oct 10, 2026
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Other failed specifications

A physical or chemical test other than potency, dissolution, impurity or stability failed - pH, viscosity, appearance, tablet integrity, fill volume. A product outside its own specification may not perform as designed, even if the active ingredient is present.

394 FDA drug recalls with this cause, newest first.

Every drug has a specification sheet: pH, viscosity, moisture, tablet hardness, colour, fill volume, disintegration time. A lot that misses any of them is out of specification, even when the active ingredient is present in the right amount. These recalls include discoloured tablets, crystals forming in a solution, capsules that split, and short-filled containers. They are rarely Class I, but they signal a process that has drifted.

Class III · Low risk

Xolegel (ketoconazole)

Failed Viscosity specification: Slightly higher OOS results obtained for viscosity

Terminated Failed specification Almirall, LLC NDC 16110-080-45 D-1549-2022
Class II · Moderate risk

Eszopiclone Tablets

Shortfill: customer complaints of one to three tablets were reported missing from 30 count bottles.

Terminated Failed specification Macleods Pharma Usa Inc NDC 33342-299-07 D-1174-2022
Class II · Moderate risk

Methylphenidate Hydrochloride Chewable Tablets

Failed Tablet Specifications: Recall of this drug product was voluntarily initiated by the manufacturer due to a market complaint, which stated that a tablet in the sealed bottle was twice larger in size when compared to the remaining tablets. This complaint is second of its kind.

Ongoing Failed specification Rising Pharmaceuticals NDC 64980-221-01 D-0573-2022
Class II · Moderate risk

Pregabalin Capsules

Failed Tablet/Capsule Specifications: Out of Specification results for particle Size Distribution and Bulk Density of the Active Pharmaceutical Ingredient.

Terminated Failed specification Sun Pharmaceutical Industries INC NDC 47335-687-88 D-0361-2022
Class II · Moderate risk

Ezetimibe and Simvastatin Tablets

Failed Excipient Specification; product manufactured using an excipient found to be OOS for conductivity

Terminated Failed specification Golden State Medical Supply Inc. NDC 51407-193-05 D-0228-2022