Oh, I HOPE none of these effects are permanent, but I don't know. I've got my own worries about decades of thiazides.
This info is going to be hard to come by because of the huge financial liability that wiould be incurred by any drug admitting to causing permanent impotence.
But I wish I knew. Had I thought ED was likely down the road, I'd have NEVER started these drugs...I'd rather take my chances with marginal hypertension. The situation is almost akin to removing ones feet to prevent athlete's foot in the future!