Drug Interactions (TDCI)

Coumadin and ilosone: Ilosone can increase the effects of Coumadin, increase risk for bleeding. Coumadin and Dilantin: potential for increased effects of both. Coumadin and Dilantin: Increased Coumadin metabolism (decreased effect). Theophylline and Dilantin: if taken orally they can interfere with absorption of each other and decrease medication effect.