How Vitamin B6 interacts with theophylline

Interaction type: Depletions

Interaction rating: Study Supported

These medications may cause a decrease in the active form of vitamin B6 in the body. Supplementation with the affected nutrient may be necessary. (1)


  1. View Abstract: Ubbink JB, et al. Evidence of a Theophylline-induced Vitamin B6 Deficiency Caused by Noncompetitive Inhibition of Pyridoxal Kinase. J Lab Clin Med. Jan1989;113(1):15-22.