HEMLIBRA interferes with certain laboratory assays

Some currently available tests were not designed for use with HEMLIBRA

In patients taking HEMLIBRA, aPTT and other clotting-based assays provide false readings and should not be used to make clinical treatment decisions.

FVIII=factor VIII.

*Chromogenic FVIII activity tests may be manufactured with either human or bovine coagulation proteins.



Laboratory Monitoring Information

How to select appropriate laboratory assays while using HEMLIBRA

Contact a Rep

Get in touch with your HEMLIBRA representative

Treating Breakthrough Bleeds

Guidelines for addressing breakthrough bleeds