I have low blood pressure naturally. I want to try the vitamin b1 thiamin therapy for my Parkinsons. I am on a dose of 1000 mg (500 mg in morning) and (500mg lunch) .
This week I have been dizzy and ready to faint when I stand up or do aerobic exercise.
I read that thiamin hcl can cause low blood pressure. Should I lower dose or just forget taking this treatment? Has anyone else had this problem?