Understand the source comparison
TB-4 Dosage Reconstitution: Concentration Comparison
Different reconstitution volumes produce different concentrations, which determine injection volume for the same dose. Choose your reconstitution volume based on your target dose range and injection volume preferences. | Vial Size | Bacteriostatic Water Volume
No winner is assigned.
This page preserves a source comparison for education. It does not add a rating, recommendation or clinical judgment.
- Different reconstitution volumes produce different concentrations, which determine injection volume for the same dose. Choose your reconstitution volume based on your target dose range and injection volume preferences.
- | Vial Size | Bacteriostatic Water Volume | Resulting Concentration | Volume for 0.5mg Dose | Volume for 1mg Dose | Volume for 2mg Dose | Professional Assessment ||—|—|—|—|—|—|| 5 mg | 1.0 mL | 5 mg/mL | 0.1 mL (10 units) | 0.2 mL (20 units) | 0.4 mL (40 units) | Smallest injection volumes but tightest measurement tolerance. Best for protocols requiring doses above 1mg || 5 mg | 2.0 mL | 2.5 mg/mL | 0.2 mL (20 units) | 0.4 mL (40 units) | 0.8 mL (80 units) | Balanced approach. Moderate volumes with manageable measurement precision, most versatile for 0.5–2mg dosing || 5 mg | 2.5 mL | 2 mg/mL | 0.25 mL (25 units) | 0.5 mL (50 units) | 1.0 mL (100 units) | Larger injection volumes with easier measurement accuracy, ideal for lower-dose protocols or less precise equipment || 10 mg | 2.0 mL | 5 mg/mL | 0.1 mL (10 units) | 0.2 mL (20 units) | 0.4 mL (40 units) | Higher total doses per vial. Best for extended protocols or multiple subjects per vial with higher per-dose requirements |
- Reconstitution volume is a researcher preference, not a fixed standard. The correct choice depends on your dosing range, syringe precision, and subject tolerance for injection volumes. Document your choice and maintain it consistently across all subjects in the same cohort to eliminate reconstitution variance as a confounding variable.