I'm not sure why a doctor would prescribe Valium to someone with narcolepsy - stimulants like Adderall can often leave someone feeling strung out, burnt out, and even more tired in the long run... versus something like Provigil (aka modafinil) which is non-narcotic and promotes awareness and wakefulness.
Grappa is one of Italy's most popular alcoholic drinks, with somewhere in the region of forty million bottles of grappa being produced every year. It's also a very Italian drink; since 1989 the name has been protected by the EU, meaning that the drink can only be called grappa if it's sourced and produced in Italy.
What is Grappa? The main ingredient of grappa is pomace, which consists of the grape skins, seeds and stalks that are left over from the winemaking process. These are taken through a second process of distillation, which extracts the remaining flavours from the pomace before the waste is discarded.