Richmond of One for the Road mentioned this to me the other night, and I found myself puzzled by the notion, since I'd fancied myself quite familiar with the dubious history of cigarettes, doctors, and advertising in America.
But I'd never heard of cigarettes for asthmatics.
Apparently I'd missed this:
"Dr. Whetzel’s Cigarettes for Asthmatics"
Offhand, I'm guessing the side-effects were probably no worse than epinephrine, albuterol, or whatever that crazy white powder in Advair is.