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

Fig 3.

Line graphs compare cycloserine and clofazimine concentrations in plasma and CSF. Cycloserine peaks around 5 hours then declines, remaining higher in plasma. Clofazimine steadily rises over weeks, with consistently greater plasma levels than CSF.

Simulated steady-state typical concentration–time profiles in plasma and CSF following (A) 750 mg oral daily dose of cycloserine over 24 hours (left) and (B) 100 mg oral daily dose of clofazimine over 24 weeks (right). Solid lines represent the median predicted concentrations for plasma and CSF, respectively; shaded areas indicate the 90% prediction intervals.