Can passionflower be taken with turmeric?

Most likely yes.: Passion flower, used by aztecs as analgesic ; for its harma alkaloids, of which harmine induces a contemplative state and mild euphoria. Germans used it as "truth serum". Its flavonoids have anxiolytic effect. Curcumin, used for cancer prevention, inflammation etc. Can decrease platelet aggregation. Some theoretic concerns have been raised that it might increase anticoagulant drugs' bleeding risk.