How Do You Know if You're Using a Prescription Drug?

I think this calls back to what Andy had said earlier about the mistrust. And I think that's where the divide comes in between people seeking natural remedies versus taking commercial prescription drugs is you don't know, we don't know what's in the plant. We don't know the purity of the active ingredient that we're seeking and if they're put it like, how do you know if they're using the natural active ingredient?