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The bioavailability of oral methotrexate in children with inflammatory bowel disease. | LitMetric

AI Article Synopsis

Article Abstract

Objectives: Methotrexate is used to treat patients with inflammatory bowel disease. Although no available pharmacologic data support the assumption that the bioavailability of methotrexate is diminished in patients with inflammatory bowel disease, most such patients receive methotrexate parenterally.

Methods: The oral bioavailability of methotrexate was determined in 11 pediatric patients being treated with methotrexate for inflammatory bowel disease. Serial plasma methotrexate concentrations were determined after equal subcutaneous and oral doses of methotrexate.

Results: The mean bioavailability of methotrexate in patients with inflammatory bowel disease was 84% +/- 38%. Interpatient variability in drug exposure was similar after oral and subcutaneous administration.

Conclusions: The bioavailability of methotrexate in patients with inflammatory bowel disease is no different from that observed in other disease states. Subcutaneous administration of methotrexate does not appear to decrease the interpatient variability in drug exposure. There is no sound pharmacologic basis for favoring administration of methotrexate via the subcutaneous route for patients with inflammatory bowel disease.

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Source
http://dx.doi.org/10.1097/01.mpg.0000157588.27125.50DOI Listing

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