Reconstitution: Powder Volume and Resulting Strength
Powder volume, final volume and strength of a reconstituted vial or oral suspension, from the label's own figures.
Open the tool → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Unit of the drug amount
- mg
- Drug amount in the container
- 1000
- Diluent volume the label states
- 9.6 mL
- Label: resulting concentration, per mL
- 100
Result: 1,000 mg with 9.6 mL of diluent makes 10 mL at 100 mg/mL. Powder volume 0.4 mL.
The tool opens with these values already filled in. Replace them with your own.
What you enter
- Unit of the drug amount (also used for the strengths and the dose)
- Drug amount in the container
- Diluent volume the label states
- Label: resulting concentration, per mL (enter one of the three label figures)
- Label: final volume
- Label: powder displacement volume
- Diluent volume you intend to use (optional)
- Concentration wanted, per mL (optional; not with the diluent volume above)
- Ordered dose (optional)
How this is calculated
Citation
Arithmetic identity (volume balance): reconstituted volume = diluent + the volume the powder takes up. The figures come from the product's own label; no displacement value is supplied.
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.