I have been using a sleep aid with phenibut for years. after quitting, i'm sleeping badly. how long will it take my gaba receptors to heal? will they?

While the science: ...isn't clear on whether phenibut activates GABA receptors or not, the science IS clear that phenibut can be habit-forming. In general, it takes about 2-3 weeks to withdraw from dependence on phenibut. Keep in mind, however, that, if you had insomnia BEFORE starting the phenibut, it's likely to recur after your dependence on it is resolved. I encourage you to talk to a doctor about this.