Octagam Infusion Rate Calculator

Octagam® Infusion Rate Calculator

Calculate IVIG Pump Settings (mL/hr)

Octagam 5% (50 mg/mL) Octagam 10% (100 mg/mL)

Typical range: 0.5 to 12.0 mg/kg/min depending on concentration and tolerance.

Calculated Pump Setting:

0 mL/hr

Please enter valid numbers for weight and rate.

function calculateOctagamRate() { var weight = parseFloat(document.getElementById('patientWeight').value); var concentration = parseFloat(document.getElementById('concentration').value); var rateMgKgMin = parseFloat(document.getElementById('targetRate').value); var resultArea = document.getElementById('resultArea'); var errorArea = document.getElementById('errorArea'); var mlPerHourDisplay = document.getElementById('mlPerHourResult'); var detailDisplay = document.getElementById('detailResult'); if (isNaN(weight) || weight <= 0 || isNaN(rateMgKgMin) || rateMgKgMin <= 0) { errorArea.style.display = 'block'; resultArea.style.display = 'none'; return; } errorArea.style.display = 'none'; // Formula: Rate (mL/hr) = [Rate (mg/kg/min) * Weight (kg) * 60 (min/hr)] / Concentration (mg/mL) var mlPerHour = (rateMgKgMin * weight * 60) / concentration; var roundedRate = Math.round(mlPerHour * 100) / 100; mlPerHourDisplay.innerHTML = roundedRate + " mL/hr"; var totalMgPerMin = rateMgKgMin * weight; var totalMgPerHour = totalMgPerMin * 60; detailDisplay.innerHTML = "Calculation Breakdown:" + "• Total Dose Rate: " + (Math.round(totalMgPerMin * 100) / 100) + " mg/min" + "• Hourly Dose: " + (Math.round(totalMgPerHour * 100) / 100) + " mg/hr" + "• Concentration Used: " + (concentration / 10) + "% (" + concentration + " mg/mL)"; resultArea.style.display = 'block'; }

Understanding Octagam Infusion Rates

Octagam is an Intravenous Immunoglobulin (IVIG) indicated for the treatment of primary humoral immunodeficiency (PI) and chronic immune thrombocytopenic purpura (ITP). Calculating the correct infusion rate is critical for patient safety and minimizing adverse reactions.

Octagam Infusion Protocols

Infusion rates for Octagam vary depending on the product concentration (5% vs. 10%) and the patient's tolerance. Typically, infusions start at a lower rate (initial rate) and are gradually increased (maintenance rate) if the patient tolerates the treatment well.

• Octagam 5% Concentration: Often started at 0.5 mg/kg/min (0.01 mL/kg/min). If tolerated, it can be increased up to 3.3 mg/kg/min (0.07 mL/kg/min).
• Octagam 10% Concentration: Often started at 1.0 mg/kg/min (0.01 mL/kg/min). If tolerated, the rate can be increased up to 12 mg/kg/min (0.12 mL/kg/min).

How to Calculate mL/hr for IV Pumps

Most infusion pumps require the entry of a rate in milliliters per hour (mL/hr). To convert the clinical recommendation of mg/kg/min to the pump setting, use the following formula:

Rate (mL/hr) = [Target Rate (mg/kg/min) × Weight (kg) × 60] / Concentration (mg/mL)

Clinical Example

If a patient weighs 80 kg and the physician prescribes Octagam 10% (100 mg/mL) at a maintenance rate of 4 mg/kg/min:

1. 80 kg × 4 mg/kg/min = 320 mg per minute.
2. 320 mg/min × 60 minutes = 19,200 mg per hour.
3. 19,200 mg / 100 mg/mL = 192 mL/hr.

Important Safety Note: This calculator is for educational purposes only. Always verify infusion rates against the official manufacturer prescribing information and follow local clinical protocols. Rates should be adjusted based on the patient's clinical response and renal function.