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. 2023 Sep 12;23:980. doi: 10.1186/s12913-023-09995-3

Table 2.

Defects by categories and subcategories

Main categories (n, %) Subcategories
I Contamination (n = 59,36.2) Colour variations, impurities, outside standards (n = 49)
Lack of sterility (n = 7)
Microbiological contamination (n = 3)
II Stability defects (n = 41, 25.2)

Unspecified stability failure (n = 33)

Failure in dissolution test (n = 8)

III Active pharmaceutical ingredient (API) defects (n = 26, 15.9) API out of specification (either more or less) (n = 26)
IV Variation in physical properties such as weight and volume (n = 4, 2.4)

Weight variation (n = 3)

Volume variation in single dose parenteral preparation (n = 1)

V Packaging and labelling defects (n = 27, 16.6)

Failure in container closure system functionality (n = 6)

Packaging in a wrong carton (n = 1)

Manufacturer's information missing (n = 4)

Contain a lesser number of tablets than stated (n = 1)

Failure to comply with the description as per the manufacturer’s specifications (n = 7)

Labelling errors (n = 8)

VI Adverse events reported (n = 1, 0.6) A cluster of adverse drug reaction (ADR) events reported (n = 1)
VII Unclassified (n = 5, 3.0) Data not adequate to assess (n = 5)

Total number of defects reported (N = 163)