Proviron isn’t methylated. It’s not hepatoxic.
But again, OP should talk to his doctor.
Even if his SHBG is high, I can’t believe it’s grabbing all his free test to the point that it’s the cause of his ED. There’s no reason to be running drugs long-term.
The problem with endo's here is, that they certainly wont even bother looking at you, with such "life style" type of problems. And even if they do, you wont get much out of it. But that's europe, usa is different as you have trt clnics and all ... Anyway, apart from sending the OP to the doctor, discussing this further:
Shbg can grab up a lot of free test (speaking natty levels here). And if you couple that with low 5a activity or enzyme count, you can end up with really low dht numbers. Been there my self b4 I started playing with my hormones; high TT, high-ish shbg, low-ish free T, low-ish DHT. I actually did bloods for DHT. That's why I often speak about "optimizing" your hormone levels (lowering shbg, upping LH, etc.) now and there, to people that don't cycle or use aas. As most that don't probably, have sub optimal levels - that could be better. And this is not rocket science; a bit of clomid and something to lower shbg and e2 time to time.
Test boosters work just great for this. And regarding lowering shbg it's mostly DHAA or arimistane that are the most potent inhibitors, I think. Haven't looked at them for some time now. But I remember using one that had DHAA in it, tongkat, etc. I felt great, almost like I was on a mild cycle, and my free-t went above range: 30 pg/ml (7 - 22.7).
This is the time I had free lab's as I had a deal with a local lab, so I did a bunch of bloods I wouldn't have otherwise - arimistane and test boosters being among them ke-ke.