@3 - Prozac is much too slow-acting for a cupcake to have much effect. You'd have to make a point of eating a Prozac-cake every day for several weeks before you start to notice anything, and the corresponding weight gain might not be worth it.
Psychopharmacological sprinkles already exist! Depakote sprinkles are a seizure medication also used to treat manic episodes for by bi-polars and for severe migraines.
https://www.facebook.com/events/22881009…
Now, a Xanax cake, that's a different story.