The parameter and OBJs values for the base 1-, 2-, and 3-compartment models are summarized in Table 1. As found in the separate modeling of the intravenous and nasal data, the 2-compartment model ...

old man who at age 3½ yr ... will respond to appropriate intravenous alimentation, even at an advanced age.

intercompartment clearance of compartments 1 and 2 (or 1 and 3); V1 (or 2 or 3) = volume of first (or second or third) compartment.