Personally I think it sounds like bipolar, but I'm far from being a doctor. And I don't know that much about borderline. He's a teenager, he's on an AD and he raged out. Sounds like a male with bipolar and don't forget all the testosterone going on at this age. But as I said. This is just my opinion...I AM NOT A DOCTOR!!
My sons pdoc won't give him a diagnosis yet. He said he's too young. He is on meds for his symptoms but thats it.