It is not modulatory to BP and is CI with many medications, I very rarely use it , it is more like a drug than most herbs.
I would try using cardiovascular trophorestoratives like Hawthorn, Cactus, small amounts of Asian white Ginseng, Arjuna, Amla, Astragalus, Dang Gui, possibly Rhodiola (all of course depending on the specifics of the patient)