Plan oxaliplatin dosing with BSA and presets safely. Apply reductions, rounding, and vial estimates fast. Export results for checking before compounding and administration steps.
| Height (cm) | Weight (kg) | BSA (m²) | Dose (mg/m²) | Percent | Final dose (mg) | Rounding |
|---|---|---|---|---|---|---|
| 170 | 70 | 1.818 | 85 | 100% | 155 | Nearest 5 |
| 160 | 60 | 1.633 | 130 | 75% | 160 | Nearest 10 |
| 180 | 85 | 2.040 | 100 | 50% | 100 | None |
Oxaliplatin is commonly dosed by body surface area (BSA) to scale exposure across patient sizes. This calculator supports planning by combining BSA, protocol strength (mg/m²), and a percent adjustment that reflects clinical decisions. It does not replace prescribing, toxicity rules, or pharmacy verification steps. Confirm the ordered regimen, whether dose capping is used, and infusion timing carefully.
When height and weight are entered, BSA uses the Mosteller method: √((cm×kg)/3600). The base dose equals BSA×dose intensity. A 1.82 m² patient at 85 mg/m² yields 154.7 mg before rounding. If weight changes from 70 to 75 kg at 170 cm, BSA rises from about 1.82 to 1.88 m², increasing the same 85 mg/m² dose by roughly 5 mg.
Many regimens use values such as 85 mg/m² or 130 mg/m², but protocols vary by indication, cycle length, and combinations. The percent field can represent reductions (for example 75% or 50%) or other planned adjustments. Applying 75% to 154.7 mg results in 116.0 mg before rounding; applying 50% yields 77.4 mg. Document the clinical trigger for each adjustment and confirm how your protocol defines “percent of full dose.”
Institutions often round chemotherapy doses to a defined step (for example 5 mg or 10 mg) to reduce compounding complexity and minimize waste. This tool rounds the adjusted milligrams to the nearest step. The vial planner then estimates a vial combination using the entered vial sizes, reporting total milligrams drawn and estimated waste. For example, a 155 mg final dose with 100 mg and 50 mg vials may require two vials (150 mg) plus one additional vial, depending on policy and available sizes.
Use the summary to cross-check BSA, selected intensity, percent, and final dose. If your workflow requires double-checks, export CSV for charting and PDF for sign-off notes. Record the inputs used, rounding rule applied, and the vial assumptions. Always reconcile outputs with labs, neuropathy criteria, renal function guidance, and local compounding standards. If the calculated dose differs from the order, investigate unit errors, protocol selection, body weight changes, or rounding thresholds.
Auto mode uses the Mosteller equation: BSA = √((height in cm × weight in kg) / 3600). You can also enter BSA directly if your workflow calculates it elsewhere.
Yes. Choose the custom option and enter your intended mg/m² value. Always verify the selected intensity against the exact protocol, cycle, and combination regimen being delivered.
It applies a multiplier to the base dose, such as 75% for a reduction. The clinical reason and protocol definition of “percent of full dose” should be documented and confirmed.
The tool rounds the adjusted dose to the nearest selected step (1, 5, or 10 mg) or keeps the exact value. Rounding practices differ, so match the setting to your institutional rule.
No. It uses a simple largest-first estimate to suggest vial counts and compute an approximate waste amount. Pharmacy systems may use different vial sizes, partial vials, or optimization methods.
No. This is an educational planning tool. Final dosing requires prescriber review, toxicity criteria, labs, organ function considerations, and local compounding and administration standards.
Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.