Prescription Entry Form
This tool converts a clinician-entered regimen into timing, volume, totals, and exports. It does not recommend a therapeutic dose.
Example Data Table
This example is hypothetical arithmetic only. It is not prescribing advice.
| Example | Entered prescribed dose | Doses/day | Days | Strength | mL per dose | Total course mL | 100 mL bottles |
|---|---|---|---|---|---|---|---|
| Illustrative suspension arithmetic | 250 mg | 3 | 7 | 250 mg per 5 mL | 5.000 mL | 105.000 mL | 2 |
| Illustrative solid-unit arithmetic | 500 mg | 2 | 10 | 500 mg capsule | 1.000 unit | Not applicable | Not applicable |
Formula Used
Concentration (mg/mL) = Suspension strength in mg per 5 mL ÷ 5
mL per dose = Prescribed mg per dose ÷ Concentration (mg/mL)
Daily mg = Prescribed mg per dose × Doses per day
Total course mg = Daily mg × Therapy days
Daily course mL = mL per dose × Doses per day
Total course mL = Daily course mL × Therapy days
Bottles needed = Ceiling(Total course mL ÷ Bottle size mL)
Interval hours = 24 ÷ Doses per day
Remaining doses = Total doses − Doses already taken
How to Use This Calculator
- Enter only a dose already prescribed by a licensed clinician.
- Choose whether you want suspension volume or solid-unit arithmetic.
- Add doses per day, therapy days, and the first dose time.
- Fill the strength field that matches the chosen dosage form.
- Optionally enter doses already taken to update remaining totals.
- Review warnings before using any result for scheduling or dispensing support.
- Use the CSV or PDF buttons to save the summary and full schedule.
- Recheck the prescription label, allergy history, and pharmacy instructions before administration.
Frequently Asked Questions
1) Does this page tell me the correct amoxicillin dose?
No. It only performs arithmetic on a dose that a licensed clinician has already prescribed. It is not a diagnostic, prescribing, or renal-adjustment tool.
2) Why does the page ask about serious penicillin allergy?
Because a serious hypersensitivity history makes amoxicillin unsafe without direct medical guidance. The page stops instead of continuing with calculations.
3) Why is there a kidney review warning?
Kidney impairment can change clinically appropriate dosing. This page does not adjust the regimen, so the warning reminds you to use only clinician-confirmed instructions.
4) Can I use this for infants under 3 months?
Use it only after the prescribing clinician has confirmed the regimen. The infant flag adds a warning because young infant dosing needs direct medical oversight.
5) What does the suspension mode calculate?
It converts the prescribed milligrams per dose into milliliters per dose, then estimates daily volume, course volume, remaining volume, and bottle count.
6) What does the solid-unit mode calculate?
It estimates how many same-strength tablets or capsules match one prescribed dose. Always verify formulation, strength, and pharmacist instructions before use.
7) What is shown in the graph?
The graph plots daily suspension volume and cumulative course volume. In solid-unit mode, the export and schedule remain useful, but volume plotting is not applicable.
8) Can I save results for records?
Yes. Use CSV for spreadsheet review and PDF for printable documentation. Saved files include summary data, warnings, and the dose schedule table.