Anticoagulants: the effect of oral anticoagulants may be enhanced by fenofibrate and cause an increased risk of bleeding (close monitoring of INR and dose reduction of anticoagulants at the start of therapy).
Ciclosporin: considerable, reversible impairment of renal function possible with concomitant use of fibrate-containing medicinal products and ciclosporin. Monitor renal function carefully and discontinue fenofibrate if necessary.
Statins: Risk of severe myopathy with rhabdomyolysis is increased when statins are combined with fibrates. This combination should be avoided.
Glitazones: some cases of reversible paradoxical HDL cholesterol lowering have been observed with concomitant use of fenofibrate and glitazone; HDL cholesterol should be monitored; if HDL cholesterol falls, it is recommended to discontinue one of the two therapies.
Fenofibrate and the active metabolite fenofibric acid are weak inhibitors of CYP2C19 and CYP2A6 and moderate inhibitors of CYP2C9 at therapeutic concentrations.
Patients taking other drugs with a narrow therapeutic range that are metabolized via CYP2C19, CYP2A6 and especially CYP2C9 in addition to fenofibrate should be carefully monitored. If necessary, the dosage of these drugs should be adjusted.
However, the WW profile is complex and WW must therefore be clarified separately in each individual case!