Independent register of U.S. FDA drug recalls · updated Oct 10, 2026
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Dissolution failure

The tablet or capsule did not dissolve within specification. Dissolution controls how much drug the body absorbs; a failure can change the effective dose.

405 FDA drug recalls with this cause, newest first.

These recalls happen when a tablet or capsule does not dissolve the way its specification requires. Because dissolution controls how the drug is released, a failure can mean a patient absorbs it too slowly, too quickly, or not at all - a particular concern for extended-release products, where the release profile is the whole point.

Class II · Moderate risk

Mercaptopurine Tablets

Failed USP Dissolution Test Requirements: This sub-recall is in response to Prometheus Laboratories Inc. recall for Mercaptopurine USP 50mg because the lot does not meet the specification for dissolution.

Terminated Dissolution failure American Health Packaging NDC 68084-325-21 D-1668-2012
Class II · Moderate risk

Mercaptopurine Tablets

Failed USP Dissolution Test Requirements: The recalled lots do not meet the specification for dissolution.

Terminated Dissolution failure Prometheus Laboratories Inc. NDC 49884-922-02 D-1659-2012