"The following medications impact the absorption, utilization and/or activation of vitamin D:
* Anticonvulsant medications, including Dilantin, are used to control seizure activity in people with epilepsy and brain cancer, and those who have suffered head trauma through injury or stroke. These medications decrease the activity of vitamin D. "
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Date: 2009-07-03 05:11 pm (UTC)My guess is that one of the meds is a D inhibitor. From http://www.whfoods.com/genpage.php?tname=nutrient&dbid=110:
"The following medications impact the absorption, utilization and/or activation of vitamin D:
* Anticonvulsant medications, including Dilantin, are used to control seizure activity in people with epilepsy and brain cancer, and those who have suffered head trauma through injury or stroke. These medications decrease the activity of vitamin D. "