Does phenylpiracetam work or not?

Hi, I'm from Russia, the birthplace of phenylpiracetam. I take this drug periodically in courses and like how it stimulates and makes me bulletproof. But I'm familiar with our science and know it's corrupt, and since the drug is under-researched and almost all the studies were done in Russia, I don't fully trust these studies. I feel the drug's effects, but as a skeptic, I want to question whether it's a placebo and get your experience and opinion on this. Sorry for my english))