As an anecdote (haha) to last weeks WWWoW, here is a list of fictional medicines and drugs. It should be noted that some of the items listed may be used as both medicine and drug, or in other capacities, but fictional works are often vague on such distinctions. Grouping is done by what seems most likely. My favorite on this list is probably Dylar, from the novel White Noise, a psychoactive drug that is supposed to remove the fear of death.