The essentials in three lines
| Step | Why it matters |
|---|---|
| Save the logger or monitoring system data | without values and duration the excursion cannot be assessed or the record supported |
| Do not release the goods until decided | quarantine separates the affected batches from the rest of the stock |
| Assess using manufacturer data | only the manufacturer knows whether short excursions are acceptable — stability data |
To stop it happening again you need the cause: an open door, a unit failure, a poorly placed sensor. If the cause is not found or excursions recur at the same point, that is a reason for re-mapping. A monitoring system with alarms tells you within minutes rather than in the morning.
Frequently asked questions
Can a medicine be sold after a temperature excursion?
Only after assessment by the authorised person based on the manufacturer's stability data. Until then the goods are quarantined and not released.
What if the excursion is found at receipt?
Do not take the goods into stock: note the transport excursion in the receiving documents, quarantine the shipment and notify the supplier in writing with the logger or indicator data.
What if vaccines may have frozen?
For adsorbed vaccines with an aluminium adjuvant SanPiN 3.3686-21 describes the shake test; a damaged vaccine must be written off. See the vaccine cold chain page.