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. 2025 Oct 21;69(12):e00931-25. doi: 10.1128/aac.00931-25

Fig 4.

Pharmacokinetic model diagram outlines oral dose moving through transit and absorption compartments into central plasma compartment, connected to two peripheral compartments and lumbar CSF, with elimination and observation points.

Schematic representation of the clofazimine final model. Schematic representation of the final clofazimine model. Ktr is the first-order rate constant for drug passage through transit compartments. Q and Q2 represent the intercompartmental clearances between the central and the two peripheral plasma compartments. t1/2Plasma-CSF is the equilibration half-life between plasma and CSF, which describes how soon the change in plasma is reflected in the CSF. PPCCSF-Plasma is the pseudo-partition coefficient which represents the relative drug exposure in CSF compared to plasma at steady state.