The Most Common Reasons for Drug Recalls

Manufacturing Problems Lead the List

Drug recalls are driven by a different set of causes than food recalls. While contamination plays a role, the majority of drug recalls stem from manufacturing quality issues — problems with how the drug was made, packaged, or labeled rather than inherent problems with the drug itself.

Current Good Manufacturing Practice (cGMP) Violations

The most common reason for drug recalls is a failure to follow Current Good Manufacturing Practice (cGMP) regulations. These rules govern every aspect of pharmaceutical production, from facility cleanliness to equipment calibration to documentation. Violations can include inadequate quality control testing, failure to investigate anomalies, cross-contamination between production lines, and improper environmental controls.

cGMP violations often lead to multiple recalls at once because the underlying problems affect an entire facility, not just one product.

Contamination and Impurities

Drug contamination takes several forms:

• Microbial contamination: Bacteria, mold, or other microorganisms found in products that should be sterile, such as injectable drugs or ophthalmic solutions
• Chemical impurities: Unintended chemical compounds formed during manufacturing or degradation, including nitrosamine impurities (like NDMA) that have driven numerous recent recalls
• Particulate matter: Visible or sub-visible particles in injectable drugs, which can cause serious harm if injected
• Cross-contamination: Traces of one drug found in another, often due to shared manufacturing equipment

Potency and Stability Failures

Drugs that test outside their specified potency range — either subpotent or superpotent — are recalled because patients cannot rely on receiving the correct dose. Stability failures, where a drug degrades faster than its labeled expiration date suggests, fall into the same category. These are often detected during routine quality testing or FDA inspections.

Labeling and Packaging Errors

Mislabeled drugs are a serious safety concern. Common labeling recalls involve:

• Wrong drug name or strength on the label
• Incorrect dosing instructions
• Missing or incorrect warnings
• Mix-ups where the wrong product is placed in a labeled container

A container labeled as one medication but containing a different drug can have fatal consequences, which is why labeling errors often receive Class I classifications.

Tracking Patterns

Drug recall patterns are visible when you look at the data over time. You can browse drug recalls by year or manufacturer on RecallDepth to see which companies and which types of problems generate the most recall activity. Some manufacturers appear repeatedly, often linked to the same facility or the same type of manufacturing issue.