Source comparison
Reconstitution comparison: same 10 mg, four different volumes
Because the diluent volume is a free choice, the same vial can be set up at any of several concentrations. Higher concentration means smaller, harder-to-measure volumes; lower concentration means larger, easier-to-measure volumes but a diluent load the vial ma
This comparison does not assign a generated winner or score.
- Because the diluent volume is a free choice, the same vial can be set up at any of several concentrations. Higher concentration means smaller, harder-to-measure volumes; lower concentration means larger, easier-to-measure volumes but a diluent load the vial may not accommodate. This table shows what a 200 mcg dose becomes under each option:
- 1 mL
- 10 mg/mL
- 10,000
- 0.02 mL
- 2 units
- Very concentrated; a 1-unit misread is a 50% dose error
- 2 mL
- 5 mg/mL
- 5,000
- 0.04 mL
- 4 units
- Workable; fits a 2 mL vial poorly
- 3 mL
- 3.33 mg/mL
- 3,333
- 0.06 mL
- 6 units
- Site reference configuration
- 5 mL
- 2 mg/mL
- 2,000
- 0.10 mL
- 10 units
- Easiest to measure; requires a 5 mL+ vial
- Note what does not change across that table: the vial still contains 10 mg, and still contains 50 doses of 200 mcg. Reconstitution volume changes the readability of the measurement, not the amount of peptide you have. Choosing 5 mL over 1 mL does not make the vial “weaker” — it makes each unit on the syringe correspond to less peptide, which is a precision decision, not a potency decision.