There is some potential for addiction and dependency. Fortunately after a few years experience with phenibut, I did not find the addiction potential to be any more of a risk than that of alcohol. It’s something that I enjoy, but feel no need or cravings at all to ever take it more than 2, sometimes 3 times per week.
I highly recommend to not go above the 2x/week usage guideline. Some guys claim they can take 3-4x/week, but I think its best to play it on the safe side.
As for dependence, if you abuse phenibut by taking it too frequently or continual large doses, you will become dependent on it. Don't be stupid as withdrawals are known to really suck. Phenibut can be a very useful tool in your life to excel you over common obstacles like anxiety & fear. Tolerance from phenibut increases rapidly-I find it works great by taking it Saturday + Sunday, which it then gives me 5 days for my receptors to "reset".