Succinylcholine RSI Dose Calculator

Calculates succinylcholine for rapid sequence intubation: 1.5 mg/kg IV (maximum 200 mg), onset 45–60 seconds, duration 10–12 minutes. Paediatric dose 2 mg/kg. Contraindicated in: >24h post-burn/crush/denervation (hyperkalemia risk), known pseudocholinesterase deficiency, personal/family history of malignant hyperthermia, myopathy.

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Clinical Guidance

BMI is a screening measure of body size, not a direct measure of body fat. The standard WHO categories are underweight (<18.5), normal (18.5–24.9), overweight (25–29.9), and obese (≥30).

BMI can overestimate body fat in athletes with high muscle mass and underestimate it in older adults with low muscle mass. Interpret it alongside waist circumference and clinical context rather than as a standalone diagnosis.

⚕ Clinical Disclaimer: These calculators are for educational and reference purposes only. Always verify results with qualified clinical judgment and current clinical guidelines. Do not use as a sole basis for medical decisions.
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How to Use

Enter the values for the scenario you are assessing. Calculates succinylcholine for rapid sequence intubation: 1.5 mg/kg IV (maximum 200 mg), onset 45–60 seconds, duration 10–12 minutes. Paediatric dose 2 mg/kg. Contraindicated in: >24h post-burn/crush/denervation (hyperkalemia risk), known pseudocholinesterase deficiency, personal/family history of malignant hyperthermia, myopathy. Use the succinylcholine rsi result to inform your calculation.

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