Crushed Tablets as a Drug Source
Crushed commercial tablets as a drug source: the tablets to crush and the weight of powder that carries the drug needed.
Open the tool → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Drug needed
- 150 mg
- Labeled strength per tablet
- 40 mg
- Number of whole tablets weighed
- 10
- Total weight of those tablets
- 2500 mg
Result: Crush 4 tablets and weigh 937.5 mg of the powder, which holds 150 mg of drug.
The tool opens with these values already filled in. Replace them with your own.
What you enter
- Drug needed
- Labeled strength per tablet
- Number of whole tablets weighed
- Total weight of those tablets
- Extra tablets to crush (optional)
How this is calculated
Citation
Arithmetic identity (proportion): powder to weigh = drug needed × average tablet weight ÷ labeled strength. It assumes the drug is spread evenly through the powder and uses the label strength, not an assay.
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.