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Drug Stability

PTCB Flashcards · 22 cards

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Question

An opened (in-use) vial of insulin stored at room temperature is generally good for about how long before it should be discarded, per common manufacturer labeling?

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Answer
A.28 days
B.24 hours
C.6 months
D.1 year
Many insulin products carry a general in-use guideline of about 28 days once opened and stored at room temperature, after which potency can decline even if the vial isn't empty; the technician should always verify the specific product's labeling since this varies. It is far longer than 24 hours and far shorter than 6 months or a year.