Yeah, I had insomnia on subs. They made me feel relatively euphoric and perked up, to say the least. Bear in mind, the first time around I was also smoking weed and doing other drugs, so perhaps I'm not the best litmus for this. Now I'm on a tiny chip and looking to get off when I have some time from work to just rest. As I've noted elsewhere here, it's so little that there are none of the effects normally associated. So, my advice is that he take as little as he needs to not feel sick. Taper down or maybe just cut the dose. In my experience the doctors are clueless. The guy I went to started me out on 8mgs twice a day, which had me higher than I'd ever been on pills. The best rule is to not be "high" on it. At least for me. Is he there yet? I'm not sure. But if he's leaning and dropping stuff, common sense says he's not on the right dose.