I read that this stuff is meant to be similar to phenibut. Other people say it makes them a bit sleepy or drowsy. I get no effect whatsoever! What am I doing wrong? I’m wondering if I’m just not taking enough of it and want to increase the dosage but I’m not sure what the limit is or if it varies for everyone. Does anyone know? If I take ten of them, what will that do? Is it possible to be ‘immune’ to a drug like this? I really expected to feel something but got nothing from it at all. These are 10mg pills.