PeptideStack
5.2kquestions
20kanswers
220users

Is a 27G needle the right choice for drawing cagrilintide at 2.5 mg/mL?

Asked 29 Oct 2025Modified 9 months agoViewed 13k times
20

What I am working with: a 27G needle · cagrilintide · 2.5 mg/mL.

I suspect the honest answer is that it depends, in which case I would like to know on what.

Assume I can obtain either option without difficulty, so availability is not the deciding factor.

Is there a defensible reason to prefer one, or is this a coin flip?

needle-gauge
needle-gauge

Gauge and length selection, the trade-off between draw time and tissue trauma, coring risk with larger-bore needles, and why a fixed-needle…

91 questions
injection-technique
injection-technique

Technique questions: angle, pinch versus flat, aspiration, injection speed, air bubbles, and the handling steps that determine whether you deliver…

96 questions
dead-space
dead-space

The volume trapped in the syringe hub and needle after the plunger bottoms out. It is small in absolute terms and large as a fraction of a small…

117 questions
amylin
amylin

Amylin and its analogues, most prominently cagrilintide, as a satiety mechanism orthogonal to incretin signalling. Includes the pharmacology of…

237 questions
shareeditfollowflag
TW
askedtare_and_weigh12k1629 Oct 2025
2Same situation here, so I will follow this one. – Dr_Ingrid_Baumgartner 7 months ago
3What syringe are you using? The answer is different for a 0.3 mL barrel and a 1 mL one. – Dr_Marek_Zielinski 9 months ago
add a comment

No answers yet

This question has not been answered. It has been viewed 13k times, which suggests the question is of interest and the answer is not obvious. If you can answer it with a source or a worked calculation, it will be read. See how to ask and answer.
Sponsored

PeptideMeter - Independent Peptide Analytics

Aggregated, published test results and vendor ratings built from submitted batches. Methodology stated, dataset browsable, no listing fees.

Browse results

Your answer

Ask PeptideStack is a static archive. Posting is closed, but the norms are worth stating: answer the question that was asked, show your working, cite the trial or the certificate, and say plainly where the evidence runs out.

Not medical advice. Research-use-only compounds are not approved for human use.