How Vitamin D interacts with rifampin
Interaction Type: Depletions
Interaction Rating: Study Supported
A study showed that patients taking rifampin (600 mg/day) for 2 weeks had a 70% decrease in blood levels of vitamin D. Supplementation with the affected nutrient may be necessary.(1)
 
References
  1. View Abstract:  Brodie MJ, et al. Rifampicin and Vitamin D Metabolism. Clin Pharmacol Ther. June1980;27(6):810-14.
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