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It is not always possible to administer antituberculosis pharmacotherapy orally for reasons that may be a direct consequence of tuberculosis itself. To our knowledge, no published literature is available regarding antituberculosis drug absorption via feeding tube. We present the case of a patient with tuberculosis meningitis who required medication administration via percutaneous endoscopic jejunostomy ( PEJ ) tube. Blood samples were collected during the continuation phase of antituberculosis therapy, immediately before dose administration, and then at 1, 2, 4, and 6 hours after dose administration for quantification of serum rifampin concentrations. Assaying these concentrations by high‐pressure liquid chromatography demonstrated a peak serum rifampin level (C max ) of 18 μg/ml and total rifampin exposure (area under the curve from 0–6 hours [ AUC  0–6 ]) of 50.1 μg/ml. These are high compared with rifampin C max  and  AUC  0–6  values reported in patients after oral rifampin administration; C max  tends to range between 4.0–10.5 μg/ml and  AUC  0–6  7.0–52.9 μg/ml after oral administration of 600 mg at steady state. Based on our patient's results, therefore, rifampin administered by  PEJ  tube appears to be well absorbed, with preservation of adequate C max  and  AUC  values. It is worth noting that this was in the context of drug administration in the fasted state. In the absence of any published evidence of adequate absorption via jejunal feeding tube in the nonfasted state, it would seem prudent to ensure that patients are fasted when rifampin is administered via PEJ tube, just as patients are when oral rifampin is administered. This report represents the first documented evidence, to our knowledge, of adequate rifampin absorption when administered via  PEJ  tube and provides important reassurance for health care providers, patients, and families facing similar clinical scenarios.

Adequacy of Rifampin Absorption after Jejunostomy Tube Administration