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ForumsDosing & ProtocolsAir bubbles in syringe — 12 month update Page 5

Air bubbles in syringe — 12 month update

fiona_glasgow Wed, Sep 11, 2024 at 12:21 PM 48 replies 2,979 viewsPage 5 of 10
DanielChem_CHI
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Sep 26, 2024 at 1:51 AM#21
SleepDoc_PDX said:
Compounding pharmacy dose accuracy check for dosing arithmetic: I always verify my first dose from a new vial by weighing it on a milligram scale.

Quick syringe math for dosing arithmetic dosing: if your vial is reconstituted at 5mg/2mL, that's 2.5mg/mL. For a 0.25mg dose you need 0.1mL = 10 units on an insulin syringe.

I keep a chart on my fridge:

  • 0.25mg = 10 units
  • 0.5mg = 20 units
  • 1.0mg = 40 units
  • 1.25mg = 50 units

Always double-check your concentration before drawing up!

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maria_elpaso
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El Paso, TX
Oct 1, 2024 at 3:05 PM#22

One thing that is still open after SleepDoc_PDX’s answer:

How long did you give it before you decided it was working?

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KetoKyle
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Jul 2024
Utah
Oct 7, 2024 at 4:22 AM#23
DanielChem_CHI said:
Quick syringe math for dosing arithmetic dosing: if your vial is reconstituted at 5mg/2mL, that's 2.5mg/mL.

dosing arithmetic — critical reminder about tirzepatide dose equivalence across formulations:

Mounjaro KwikPen and compounded tirzepatide are the same molecule but:

  • KwikPen is ready to inject, no mixing needed
  • Compounded requires reconstitution and proper syringe technique
  • Verify your compounded concentration before each injection
  • Never assume 1 vial = 1 dose without checking the math
Last edited: Oct 7, 2024 at 5:22 AM
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MounjBrad
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Oct 12, 2024 at 5:42 PM#24
DanielChem_CHI said:
Quick syringe math for dosing arithmetic dosing: if your vial is reconstituted at 5mg/2mL, that's 2.5mg/mL.

Sharing my dosing arithmetic titration experience with compounded semaglutide — I have been tracking injection volumes meticulously:

Using 5mg/2mL concentration with 1cc insulin syringes:

  • Month 1: 10 units (0.25mg) — mild appetite reduction
  • Month 2: 20 units (0.5mg) — significant appetite suppression
  • Month 3: 30 units (0.75mg) — custom intermediate dose
  • Month 4: 40 units (1.0mg) — optimal for me, staying here

The beauty of compounded vials is you can do custom intermediate doses. My provider was great about tailoring to my response.

Last edited: Oct 12, 2024 at 10:42 PM
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tom_AK
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Jan 2026
Anchorage, AK
Oct 18, 2024 at 7:06 AM#25
DanielChem_CHI said:
Quick syringe math for dosing arithmetic dosing: if your vial is reconstituted at 5mg/2mL, that's 2.5mg/mL.

Genuinely useful, thank you. I had the facts and not the framework. Adding it to my notes with a link back to this thread.

10 8Dr.RaviCardio, jennifer_SEA, tyler_CSCS and 7 others
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