Foxglove is a really silly idea as a herbal medicine because it is available in a quantified purified form from the pharmacy called digoxin and you will minimise the change of running out of the very narrow therapeutic window that digoxin is both efficacious and non-toxic within.
Side effects of digitalis (the active component) toxicity include but are not limited to DEATH
Saying take foxglove instead of digitalis is kind of like saying take willow bark instead of aspirin, but potentially MUCH MORE DANGEROUS.
If what you mean to say is 'we shiuldnt give profits to the pharmaceutical-medical-industrial complex because I believe it is acting against my best interests' then go ahead and say so; however if thr best example of an 'alternative' medicine being efficacious or safer is foxglove you are woefully underinformed
As the saying goes, alternative medicine that works becomes medicine. That is digoxin