Figure 13-33 Correlation between age, glomerular filtration, and clearance of d-tubocurarine (dTc). (Redrawn from Fisher DM, O'Keeffe C, Stanski DR, et al: Pharmacokinetics and pharmacodynamics of d-tubocurarine in infants, children, and adults. Anesthesiology 57:203–208, 1982.)