OpiCalc

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ABCD Score Adjusted Body Weight Body Mass Index DiaRem Score Ideal Weight & Excess Weight Loss

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Clinical Notice:OpiCalc is not a substitute for professional clinical judgment. Always verify dosages and guidelines.

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Recent Journal Updates

JAMAJun 23, 2026

A New Understanding of HFpEF in Severe Obesity

Clinical Context

We think this might be relevant to the clinical guidance for Adjusted Body Weight (AjBW).

PLOS MedicineJun 23, 2026

Parental body mass index and offspring childhood body size and eating behaviour: A structural equation modelling analysis in the Norwegian Mother, Father and Child Cohort Study

Clinical Context

We think this might be relevant to the clinical guidance for Adjusted Body Weight (AjBW).

WHO NewsJun 15, 2026

Open letter to leaders of G7, G20, BRICS and all nations on finalizing the WHO Pandemic Agreement’s Pathogen Access and Benefit Sharing annex

Clinical Context

We think this might be relevant to the clinical guidance for Adjusted Body Weight (AjBW).

Adjusted Body Weight

Clinical Standard: Calculates Ideal Body Weight (Devine Formula) and Adjusted Body Weight for drug dosing in obese patients.

Biological Sex

Height

cm

Actual Weight

kg

Awaiting assessment

Based on the Devine Formula

Guidelines & Evidence

Verified

Last Review: 2026

When to Use

When to Use

Dosing of hydrophilic medications in obese patients (e.g., Aminoglycosides).

Nutritional assessment and calorie requirement calculations in patients with BMI > 30 kg/m2.

Initial ventilator setting calculations when Ideal Body Weight (IBW) may lead to under-ventilation in significant obesity.

Estimation of metabolically active tissue mass in morbidly obese individuals.

Inclusion Criteria

Intended for patients whose Actual Body Weight (ABW) exceeds their Ideal Body Weight (IBW) by more than 20% or if BMI > 30 kg/m2.

Last Comprehensive Review: 2026