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ForumsOther Peptides & Research CompoundsPeptide reconstitution guide — BAC water volumes and concentrations Page 6

Peptide reconstitution guide — BAC water volumes and concentrations

BenResearch_OR Mon, Feb 26, 2024 at 4:00 PM 171 replies 37,617 viewsPage 6 of 20
Dr.GastroMayo
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Apr 9, 2024 at 9:14 AM#26
DoseLogDan said:
Ongoing cost tracking for dosing arithmetic — transparency for the community: Monthly medication cost: $118 Supplies (syringes, BAC water, alcohol…

Reconstitution tip for anyone mixing dosing arithmetic from lyophilized powder: use bacteriostatic water, NOT sterile water. The benzyl alcohol in BAC water preserves multi-dose vials for up to 28 days.

Inject the water slowly down the side of the vial. NEVER shake — gentle swirling only until fully dissolved. Should be crystal clear with no particles.

11 9mike_nyc, VendorMark, COA_Karl and 8 others
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bri_stats
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Apr 14, 2024 at 8:17 PM#27
DoseLogDan said:
Ongoing cost tracking for dosing arithmetic — transparency for the community: Monthly medication cost: $118 Supplies (syringes, BAC water, alcohol…

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.

12 10mike.trainer_LA, sarah_nash92, FitDadDave and 9 others
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kevin_tulsa
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Apr 20, 2024 at 7:17 AM#28
DoseLogDan said:
Ongoing cost tracking for dosing arithmetic — transparency for the community: Monthly medication cost: $118 Supplies (syringes, BAC water, alcohol…

That reframing is the part I needed. I will report back once I have actually tried it.

13 11greg_boulder, quinn_sf, NurseLeah_Nash and 10 others
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pete_nash
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Apr 25, 2024 at 6:14 PM#29

Adding the clinical framing, because it changes how the question reads.

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. Draw up your dose, weigh the syringe, subtract empty syringe weight, compare to expected water weight at that volume.

For a 10-unit dose (0.1mL): expected weight ~100mg of water. If it's significantly off, your syringe may be inaccurate. Cheap insulin syringes can have ±5% volume accuracy. Spring for quality brands like BD or Terumo.

Last edited: Apr 26, 2024 at 12:14 AM
14 12SarahChen_PharmD, sarah.morrison, NeuroNate and 11 others
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BenResearch_OR
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May 1, 2024 at 5:08 AM#30
bri_stats said:
Just received my dosing arithmetic order — packaging review: Outer box: plain brown, no medication identifiers (discreet) ✅ Inner insulation:…

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!

Last edited: May 1, 2024 at 6:08 AM
36 9PeptideSynthNJ, Dr.KarenChen, Dr.NateNeph and 33 others
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