Viva-D soft Alfacalcidol Rifampicin
ModerateRifampicin can make alfacalcidol (a form of vitamin D) work less well. If you take both, the vitamin D may not have its full effect on your body.
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.