Flowers for Algernon and maybe Planet of the Apes. It would interesting to contemplate the effect such a hormone would have on apes and chimpanzees. I certainly doubt they'd push up anywhere even close to human intelligence but would the incremental gain be such that humans would squirm with discomfort?
Disruptive Startup Idea: inject apes with this, train them to work in a factory. The ultimate labour regulations hack, as they could literally be paid in peanuts.
