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Body mass calculators



Drug Recommended dosing
Propofol Induction: IBW
Maintenance: TBW or IBW + (0.4 × excess weight)
Fentanyl TBW
Corrected weight = IBW + (0.4 × excess weight)
Thiopental 7.5 mg kg−1 IBW
Midazolam TBW for initial dose
IBW for continuous dose
Vecuronium IBW
Atracurium TBW
Initial dose 0.15 mg/kg–2.3 mg/10 kg >70 kg. Supplemental dose 0.15 mg/kg–0.7 mg/10 kg >70 kg
Cisatracurium TBW
Rocuronium IBW
Succinylcholine TBW
>140 kg. Maximum 120–140 mg
Mivacurium TBW. Divided dosing 0.15 mg/kg + after 30 s 0.15 mg/kg
Neostigmine TBW
Alfentanil IBW or corrected weight
Sufentanil TBW corrected weight BMI > 40
Remifentanil IBW
Morphine IBW
Paracetamol IBW

From Baerdermaeker, Contin Educ Anaesth Crit Care Pain (2004) (5): 152-155.doi: 10.1093/bjaceaccp/mkh042



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