[Question] reconstituted vial left out for five hours — bin it or not
Question in the title, detail here: reconstituted vial left out for five hours — bin it or not.
You cannot infer potency from a temperature record. The record tells you what happened to the box; only a test tells you what happened to the material.
Ordered from the warehouse in Denmark instead of origin and the transit went from a fortnight to 13 days. Entirely different proposition in August.
Kept a vial at room temperature for eleven days by accident. Tested it out of guilt. It was fine.
Happy to answer the boring questions. Those are usually the ones worth asking.
best — the order this archive was captured in
Lyophilisation removes the water that drives most degradation pathways. That is why the dry cake is comparatively robust and the reconstituted solution is not.
Seasonality, which the source-page lane tables show clearly once you look for it.
The same origin, destination and carrier can differ by several days between February and August, and the temperature exposure differs by much more than the transit time suggests. A lane that is uneventful in winter is the same lane that generates the summer threads.
Two practical consequences. First, compare like months when you compare lanes. Second, ask which lines a supplier holds in regional stock — a shorter leg in July is worth more than any amount of packaging.
Was there a logger in the box?
a warm gel pack tells you the pack failed, not that the material did
That is a lane problem rather than a packaging problem, and the fixes are different.
ask what storage condition the stability statement was written against
light matters more than people think for some of these
Is this a line they hold in regional stock or is it shipping from origin?
write the reconstitution date on the vial
Correction: that stability figure covers the lyophilised powder, not the reconstituted solution. Different claim entirely.
What was the packaging — rigid outer, gel packs, anything insulating?
Agreed on seasonality. The same lane in February and August is not the same lane.
Not convinced. A warm pack on day six is expected behaviour from a pack designed for four.
powder at room temperature for a few days is usually a non-event
if you want to know, log it, otherwise you are guessing
if you want to know, log it, otherwise you are guessing
Agreed, and a logger costs less than the vial you are worrying about.
- 1Lyophilisation removes the water that drives most degradation pathways. That…7 comments in this branch · started by u/low_appetite_lisa
- 2What was the packaging — rigid outer, gel packs, anything insulating?6 comments in this branch · started by u/osman_eriksen