A practical dosing helper for oncology clinic workflows. Choose route, schedule, and rounding preferences easily. Built for clear outputs, tables, and simple exports today.
This tool supports commonly used schedules and planning estimates. Always verify dosing with the current product information and the treating oncology team.
The vial and concentration assumptions are common references for IV concentrate; subcutaneous presentations may differ.
| Example | Weight (kg) | Route | Regimen | Calculated dose (mg) | Schedule |
|---|---|---|---|---|---|
| Adult A | 70.0 | IV | Fixed 200 mg | 200 | Q3W |
| Adult B | 92.5 | IV | Fixed 400 mg | 400 | Q6W |
| Pediatric C | 28.0 | IV | 2 mg/kg (cap 200) | 56 | Q3W |
| Adult D | 80.0 | SC | 395 mg | 395 | Q3W |
Examples are illustrative only. Always follow the current approved labeling and local protocols.
This calculator supports common adult fixed schedules of 200 mg every 3 weeks and 400 mg every 6 weeks for intravenous administration. For weight-based protocols, it can compute 2 mg/kg and 10 mg/kg options, plus a custom mg/kg entry when your protocol specifies it. Subcutaneous schedules, where authorized, can be recorded as 395 mg every 3 weeks or 790 mg every 6 weeks for planning. Always confirm the regimen against your current protocol.
The form collects patient identifier, age group, weight in kilograms, route, and regimen selection. Weight drives all mg/kg calculations and is validated to reduce entry errors. Planned administrations (1–52) allow the tool to project cumulative drug amount over a course of therapy. The output summarizes dose per administration, schedule label, and key assumptions, so staff can review them quickly during order verification. Add notes for pediatric context and regional formulation availability before final formal clinician sign-off.
Rounding can be set to none, 1 mg, 5 mg, or 10 mg. This helps align calculations with local prescribing preferences and reduces transcription mistakes when documenting orders. For pediatric or protocol-limited dosing, an optional maximum cap can be enabled and set in milligrams; the tool then applies min(calculated dose, cap). The result panel displays whether rounding or caps influenced the final dose.
For intravenous planning, the calculator estimates vial count using a 100 mg single-dose vial reference and reports projected waste as (vials×100) − dose. It also converts dose to volume using 25 mg/mL, producing a quick mL estimate that can help double-check preparation steps. Totals multiply per-dose values by the planned administrations to highlight cumulative vial needs and potential waste, supporting pharmacy inventory planning.
After submission, results appear above the form for faster review. One click produces a CSV suitable for spreadsheets and another generates a PDF summary for printing or attaching to internal documentation. The exported files include both the clinical summary table and the supply estimate table, keeping regimen, schedule, rounding choice, and totals together. Use exports as supporting documentation, not as a replacement for independent calculation checks.
It includes common fixed IV schedules (200 mg Q3W and 400 mg Q6W), weight-based options (2 mg/kg and 10 mg/kg), and a custom mg/kg entry. Subcutaneous entries are provided for planning where your local formulation is available.
No. It is a workflow aid for calculations and documentation. Always confirm the correct regimen, indication, formulation, and administration instructions with current approved labeling and your oncology team before ordering or preparing any dose.
For IV planning, vials are estimated as ceil(dose ÷ 100 mg). Waste is (vials×100) − dose. Volume is dose ÷ 25 mg/mL. These assumptions are for planning and may differ from your site’s products.
Yes, but only when your protocol defines the mg/kg regimen and any maximum cap. Select Pediatric, choose the mg/kg option, enable the cap if required, and document protocol details separately. Clinical review is still required.
Totals help forecast inventory and chair time planning. Waste estimates highlight how vial size can affect utilization and budgeting. These are not compounding instructions; follow your pharmacy’s policies for preparation, stability, and disposal.
CSV supports quick review in spreadsheets and audit logs. PDF creates a clean summary for printing or attaching to internal documentation. Exports mirror the on-screen tables so regimen, rounding, and totals remain consistent.
This calculator is for educational and workflow support only. Pembrolizumab dosing varies by indication, combination regimen, age, and product formulation.
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.