Reduces or blocks the anticoagulant effect of neodicumarin and phenidine.Does not affect the anticoagulant activity of heparin.
Antacids reduce absorption due to precipitation of bile salts in the initial part of the small intestine.
Simultaneous administration with antibiotics of a wide spectrum of action, minidin, quinine, salicylates in high doses, antibacterial sulfonamides requires an increase in the dose of vitamin K.
Kolestyramine, colestipol, mineral oils, sucralfate, dactinomycin I reduce the absorption of vitamin K, which requires an increase in its dose.