DK Vitamin D3 + Vitamin K1 + Vitamin K2 Fosphenytoin Sodium
ModerateVitamin D3 (cholecalciferol) is known to interact with fosphenytoin. The leaflet doesn't say how the two affect each other, only that they do, so check with your doctor or pharmacist before taking them together.
These medicines are often taken together with some care. Your doctor may change a dose, space them apart or check on you more often. Make sure your doctor and pharmacist know you take both.