It always trips me out reading early 20th century novels where the protagonist will stop in a drug store, buy a pint of whiskey, some cocaine or other now schedule 1 drug, and then sit down at the soda fountain counter and have lunch. Talk about one stop shopping.
On a related tangent, Heroin is actually a former trademark. Not a lapsed one, but one that was specifically revoked to punish Bayer during the war. Aspirin was another one. And that's why you see generic "aspirin" but no generic explicitly marketed as "xerox" or "kleenex." The kleenex mark is weakened, but not dead like aspirin and heroin.
On a related tangent, Heroin is actually a former trademark. Not a lapsed one, but one that was specifically revoked to punish Bayer during the war. Aspirin was another one. And that's why you see generic "aspirin" but no generic explicitly marketed as "xerox" or "kleenex." The kleenex mark is weakened, but not dead like aspirin and heroin.