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Has anyone dealt with dumb question - what is bacteriostatic water exactly?

NauseaFreeNow Thu, Apr 4, 2024 at 10:28 PM 49 replies 2,765 viewsPage 3 of 10

Dr.NateNeph

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Houston, TX

Apr 9, 2024 at 7:06 PM#11

chris_chi24 said:
dosing arithmetic — critical reminder about tirzepatide dose equivalence across formulations: Mounjaro KwikPen and compounded tirzepatide are the same…

Comparison of compounded dosing arithmetic delivery formats I've tried:

Format	Pros	Cons
Lyophilized vial	Longest shelf life, lowest cost	Requires reconstitution
Pre-mixed vial	Ready to draw up	Shorter shelf life (28-45 days)
Pre-filled syringes	Most convenient	Higher cost, shorter shelf life
Sublingual drops	No needles	Lower bioavailability, less data

I use lyophilized vials for cost and stability. The reconstitution takes 30 seconds once you've done it a few times.

Last edited: Apr 9, 2024 at 9:06 PM

44 17JakeSmashed95, NauseaFreeNow, SteveThurs and 41 others

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nick_SD_fit

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Sep 2024

San Diego, CA

Apr 12, 2024 at 10:50 AM#12

Dr.CardioMD said:
The arithmetic is right and one caveat matters: a U-40 syringe changes the markings, not the volumes.

Genuinely useful, thank you. I had the facts and not the framework. Printing the relevant bit and taking it with me.

45 18Dr.CardioMD, EndoResFellow, PharmacoVig_BOS and 42 others

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laura_annarbor

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Ann Arbor, MI

Apr 15, 2024 at 2:36 AM#13

chris_chi24 said:
dosing arithmetic — critical reminder about tirzepatide dose equivalence across formulations: Mounjaro KwikPen and compounded tirzepatide are the same…

Peptide calculator app recommendation for dosing arithmetic: I use PeptideCalc to calculate reconstitution volumes and injection doses. Eliminates math errors completely.

Input: vial size (mg), desired concentration (mg/mL), prescribed dose (mg)
Output: BAC water volume (mL), injection volume (units on insulin syringe)

A math error with injectable medication can mean underdosing or overdosing. Use a calculator every time until the math becomes second nature.

46 19Dr.SleepRoch, laura_annarbor, JenMemphis and 43 others

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josh_phd_bmore

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Baltimore, MD

Apr 17, 2024 at 6:23 PM#14

NauseaFreeNow said:
Two of us with identical vials and identical diluent arrived at different unit counts, which means one of us has a conceptual error rather than a…

Regarding dosing arithmetic multi-dose vial contamination prevention: after reconstituting, I wipe the vial stopper with a fresh alcohol swab before EVERY single draw. I also never touch the stopper with my fingers and use a new needle for each draw.

Even with bacteriostatic water preservative, contamination is cumulative. One sloppy draw can introduce bacteria that multiply over days. Aseptic technique isn't optional — it's essential for injectable medications.

47 20KarenAZ_mom, zoe_NC, Dr.ObesityLA and 44 others

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