Work out neonatal dose instantly with clear inputs, formula shown and shareable results.
Calculates a weight-based neonatal dose and suggests the interval band that matches corrected gestational age, since renal clearance matures with gestation.
Neonatal interval bands
Dose = weight x mg/kg. Interval commonly 24 h below 30 weeks corrected gestation, 18 h at 30-34 weeks and 12 h at 35 weeks or more
Educational estimate only. Not a substitute for professional clinical judgement, and must not be used to make treatment or dosing decisions.
Glomerular filtration is very low in extreme prematurity and rises steeply with corrected gestational age.
Current weight is used once significant weight change has occurred; local guidelines specify which applies.