I can invoke the powers of Google as well. Let's ask it how many Americans are on blood pressure drugs.
"Approximately 51.2% of Americans with hypertension (high blood pressure) are currently taking medication to lower their blood pressure."
That is not a temporary thing. Most of those people will be on drugs the rest of their unnatural lives. So when the availability of said drugs is gone, 51.2% of Americans will go into full rebound and their BP will spike for several days to weeks. Their risk of stroke and heart attack will go off the charts as any ER doctor can attest to. What should we do for those poor souls?