What is Expiry Date & Re-test Date? : Pharmaceutical Guidelines

What is Expiry Date & Re-test Date?


Expiry Date

The date placed on the container/ labels of an API designated the time during which the API is expected to remain within established shelf life specifications if stored under defined conditions and after which it should not be used. This is known as expiry date.

Re-test Date

The date when a material should be re-analyzed to ensure that it is still suitable for use in manufacturing. The retest date cannot be more than the expiry date. Any material can be re-tested before its expiry only.



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