IVIG Dose Calculator

Written by Great Medico

Updated September 24, 2026 •2 min read

Share Print Save

Medication math should be transparent and double-checked. IVIG Dose Calculator shows the reference calculation built into this plugin, while leaving the prescribing decision where it belongs—with the clinician and current product guidance.

What this calculator does

IVIG Dose Calculator uses Type of calculation, Sex, Weight, Height, and Dosing to calculate IVIG dose in grams. Where supported, it also shows Dosing weight so the primary result is easier to check. It follows the exact field flow and engine behavior in this plugin rather than describing a different calculator with the same name. Medication calculations are reference math, not prescriptions. Indication, formulation, route, kidney/liver function, interacting medicines, allergies, maximum doses, and clinician-selected regimens can change the correct dose.

How to use it

Enter or select Type of calculation, Sex, Weight, Height, and Dosing. Confirm weight units, formulation/strength, route, and dose units before reading the result. If an entry is unknown, do not substitute a guess simply to obtain a number.

How the calculation works

For a general calculation, dosing weight is actual body weight. In adjusted-weight mode, the calculator first estimates ideal body weight from sex and height, then uses adjusted weight = IBW + 0.4 × (actual weight − IBW). IVIG grams equal dosing weight × entered g/kg dose.

Example

Using the sample values prefilled in this calculator, the primary result is 100 g (IVIG dose) and Dosing weight is 100 kg. This example demonstrates the plugin’s own calculation path; replace the sample inputs with verified values before interpreting a real result.

How to interpret the result

The result is grams produced by the selected dosing weight and g/kg input. Whether actual or adjusted weight is appropriate is protocol- and indication-dependent.

Limitations and notes

IVIG dose depends on indication, product, infusion protocol, actual versus adjusted/ideal weight policy, kidney/thrombotic risk, IgA issues, and institutional guidance. Weight-based arithmetic alone cannot determine whether IVIG is indicated or safe.