pentoxifylline

pentoxifylline [pĕn′tŏk-sĭf′ə-lēn′, -lĭn, pĕn-tŏk′sə-fĭl′ēn′, -ĭn] n.

1. A bitter-tasting compound that decreases blood viscosity and improves blood flow, used in the treatment of intermittent claudication.