Figure 3. A and B, Scatter plots of the relationship between the best-estimated C_max (µg/ml) of 4-methylaminoantipyrine (MAA; abscissa) and the C_max derived from the 2-point limited-sampling strategy (LSS) models for each volunteer (ordinate), using the jack-knife approach (Methods). Panel A, Formulation A, data for 2 and 3 h. Panel B, Formulation B, data for 1.5 and 2 h. C, Scatter plot of the relationship between the best-estimated C_max (µg/ml) of MAA for dipyrone formulation A (abscissa) and the C_max derived using the 2-point LSS model developed for formulation B and the concentrations observed at the same respective times, but after administration of formulation A (ordinate). The continuous line in each plot represents the line of identity between the LSS-derived and the best-estimated C_max. C_max = peak plasma concentration.