Insulin syringe units to mg conversion — the complete reference thread

pete_nash said:

Comparison of compounded dosing arithmetic delivery formats I've tried: Format Pros Cons Lyophilized vial Longest shelf life, lowest cost Requires…

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.

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

What did you change at the same time, and can you separate the two now?

wendy_avl said:

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

Ongoing cost tracking for dosing arithmetic — transparency for the community:

Monthly medication cost: $149
Supplies (syringes, BAC water, alcohol swabs): ~$12/month
Janoshik testing: ~$14/month (amortized quarterly)
Lab work: ~$59/month (amortized quarterly)
Total: ~$229/month

Compare to brand Wegovy at $1239/month without insurance. Compounded is roughly 85% cheaper for what I have found to be clinically equivalent medication.

wendy_avl said:

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

Just received my dosing arithmetic order — packaging review:

• Outer box: plain brown, no medication identifiers (discreet) ✅
• Inner insulation: Styrofoam with 3 gel ice packs ✅
• Temperature: vials were cold to touch on arrival ✅
• Labeling: lot number, BUD, compound name, concentration ✅
• Included: COA, reconstitution instructions, dosing card ✅

This is what professional compounding pharmacy shipping looks like. If your order arrives without these basics, reconsider your vendor.

pat_auckland said:

Ongoing cost tracking for dosing arithmetic — transparency for the community: Monthly medication cost: $149 Supplies (syringes, BAC water, alcohol…

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.