The simple solution there seems to be making e-cigs available via a prescription as a smoking cessation/avoidance device.
I finally quit cigarettes by switching to ecigs, and eventually quit those as well. Actually, I just passed the 5 year mark nicotine-free a couple weeks ago.
Point is, doctors are happy prescribing Chantix, which is bad, and the better option may simply not be prescribed to folks for whom it would to a lot of good.