Docs can prescribe Mestinon which works in a similar way. I know they can't prescribe a supplements. I would rather have a medication that is USP verified. But they won't prescribe it. Not sure why. Beta blockers are not good for asthma patients and propranolol made my albuterol inhaler useless.
I tracked my Hr /BP with and without the Hup supplemtn.Laying down, sitting and standing several times and shared the data with my doctor. Even though with BB after 1 minute of standing HR as 120+ and BP 150/98. On hup a HR just over 100 and 125/85 BP standing 1 minute. These are average numbers. She still won't prescribe Mestinon. I have asked several doctors about it no one will. Guess I need to wait a few years to get into the POTS center.