Posting this under the heading it deserves: Storing a pen in use versus a pen unopened — what changed since Everything below is what sits behind that.
What changes if the standard account of Storing a pen is wrong? I ask because I have been treating it as settled and I noticed this week that I could not say why.
Working through the consequences rather than the evidence, since others here are better placed on the evidence.
Off-label dosing with a pen: if you want to deliver a dose different from the pen's pre-set steps (e.g., halfway between two step doses), that is off-label use. Some pens allow it; others do not. Confirm before attempting.
Priming: most pens require priming before the first use (injecting a small amount to fill the needle and line). Not priming can result in no dose being delivered on the first injection.
I would want to see it done twice before believing it once.
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Priming a pen and whether the primed volume is wasted
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Needle changes between doses on a reusable pen
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+35 | 39 | 584 | 6mo |
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About the Administration category
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Coming back to: Checking someone else's arithmetic: a worked example thread
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[2026 update] Clearance pathways and what renal impairment changes
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A ten-fold dose error caught before injection
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+95 | 103 | 26k | 10mo |