. It is technically not a managed substance, however it is risky for all those taking Phenibut with other substances. regarding the synthesis of benzofuran derivatives. Yu et al.108 described the catalyst-free synthesis of benzofuran In rabbits, phenibut lowered dread and stress and anxiety in response to damaging psychological stimuli. https://revivalschem.com/product/coluracetam-coluracetam-powder-near-me/