This is not a home treatment and should be guided by a doctor if necessary. Good to know that a forgotten treatment [or one which was “pushed aside”] maybe useful in certain cases.

Rauwolfia is available on the internet and I don’t think Reserpine is made anymore.

This is just for your information and most people will do well with modern antihypertensive medicines if chosen well.

If you wish search for rauwolfia on my WordPress site.

https://onlinelibrary.wiley.com/doi/full/10.1111/j.1524-6175.2007.07229.x