CFR section

21 CFR 211.170(a): Reserve samples

PART 211-CURRENT GOOD MANUFACTURING PRACTICE FOR FINISHED PHARMACEUTICALS · Subpart I-Laboratory Controls

Key facts

Citation 21 CFR 211.170(a)
Section Reserve samples
Part PART 211-CURRENT GOOD MANUFACTURING PRACTICE FOR FINISHED PHARMACEUTICALS
Subpart Subpart I-Laboratory Controls
Subchapter 21 CFR C Drugs General
Product types cited Devices, Drugs, Food/Cosmetics, General, Other_Regulations
Regulation text (excerpt) (a) An appropriately identified reserve sample that is representative of each lot in each shipment of each active ingredient shall be retained. The reserve sample consists of at least twice the quantity necessary for all tests required to determine whether the active ingredient meets its established specifications, except for sterility and pyrogen testing. The retention time is as follows: (1) For an active ingredient in a drug product other than those described in paragraphs (a) (2) and (3) of…

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