As CFAMM mentioned, many of the patients whom I've spoken to directly are underdosing. They're not even meeting their required or their prescribed dosage from their doctors. I don't think you would find anyone underdosing with pharmaceuticals to afford the medication.
I know that many people who experience acute pain, pain that comes in bursts, will choose not to medicate or will medicate with lower dosages in order to make their prescriptions last.
I know for a fact that the cost of my medication will increase approximately $200. That's depending on when I purchase oil or when I purchase dry herb. The CBD versus THC exemption will not help me whatsoever. From my licensed producer, there is not one product that would be exempt from the CBD not being charged.
I wholeheartedly feel that this excise tax will be sending medical patients to the black market.