Bosentan Monohydrate Fluconazole
ModerateFluconazole (a CYP2C9 inhibitor) can raise bosentan levels. The same happens with CYP3A4 inhibitors like ketoconazole, ritonavir and diltiazem, other CYP2C9 inhibitors like amiodarone, and with tacrolimus.
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.