Man: (calling in panic) Doctor, I ate Viagra but I can't find my wife anywhere.
Doc: Don't you have a maid?
Man: Come on doc, I don't need Viagra when I'm with the maid.
While an interesting project can get you excited to work on something, I doubt it can simulate all the neurological receptors that this drug can. The great Paul Erdos was known for his use of amphetamines throughout his life, and after a period of voluntary abstinence famously said, "Before, when I looked at a piece of blank paper my mind was filled with ideas. Now all I see is a blank piece of paper."
I actually think the two sentences that follow that quote reveal a lot more about Paul Erdos.
"You've showed me I'm not an addict. But I didn't get any work done. I'd get up in the morning and stare at a blank piece of paper. I'd have no ideas, just like an ordinary person. You've set mathematics back a month."
