Orangehead - Long term prognosis - that's what I'd like to find out. I'm really hoping someone will come on here and explain that. So far, I know that there are issues about liver and heart damage (depending on which combination of drugs have been used) and Salvadory suggests neuro-cognitive issues.
What people have said to me is that you're talking about drugs that have only been in use for under twenty years, so it's still a process of finding out. (Please, someone, do come on and fill in the gaps ... .)
But, as Salvadory also said, it is still amazing to me that we are in a position, now, to talk about long-term side-effects. I remember so well when that just wasn't a remote possibility. The long-term side-effects issue is comparable to, i think, being treated for an aggressive and life-threatening form of, say, cancer, when younger, which, though it may save your life, has long-term possible repercussions. And, I know I sound like a cheerleader here, but the rate of improvement has amazed me.
Your brother probably also knows that the drugs may have side-effects in the present. These can be things such as debilitating nausea and dizziness. All I can say there is that my friend has been extremely lucky with that, and many others are. They are very good, these days, at sorting out a treatment regime that works and is liveable with, in fact, more than just "liveable" with; can be comfortably accommodated within the person's life.
(I'm hoping some of the others come back ...)