I wouldn't say this is really in the works, but rather on our minds, so if anything, it will be a while.
IMO, grape seed extract at 300-500mg daily, and 75mg celery seed extract twice a day should be able to balance your pressures nicely. If not, you need to consider the pharma route. Your diet and training must be appropriate first though. No reason to buy all these supplements if all you have to do is drop your sodium intake.