My father, Philip, a retired pediatrician with PD has a problem I could use advise on. He has difficulty with frequent periods of low blood pressure. The episodes are frequent and severe enough that he feels washed-out and unable to move even though he is not rigid. Has anyone else encountered this problem? Are there any medications or herbal remedies that may raise blood pressure and not adversely affect the PD? Thank you, David Ambuel [log in to unmask]