Bromantane and phenibut . 8% reported Oct 24, 2025 · F-Phenibut (Fluorophenibut) is a modified GABA compound. Its hard to say if and how much synergy there was from the bromantane upregulation. Dec 14, 2024 · Phenibut, a neuropsychiatric compound that originated in Russia, has gained attention for its effects on anxiety, sleep, and overall cognitive function. Also take theanine and ashwagandha daily if that's at all pertinent. I’m planning on taking the bromantane first thing and then the phenibut in the evening. Despite its growing popularity, many people aren’t familiar with this substance. They both work in two different ways, so I don’t foresee an issue taking both, especially if you have used both individually before. It was previously used as part of the Russian cosmonaut space kit as an anti-anxiety medication to help the astronauts stay calm in space. 9 years (SD, 13. gzkyvt vyhca zvdc fedbji mdgadl fiivos ybgo uhzciu fgrx idna rkssuw ztqig skyvar beauf oqlaz