76 years old in the same boat your dads in. Treatment #1 not bad at all, treatment #2 a little rough, Treatment #3 a total nightmare, Treatment #5 I didn't think I was going to survive. I don"t have a choice I'll take Treatment #5 and pray..........The rub is , everyone may have a different experience so I suggest gathering more testimonials . Pluvicto with all its unknowns is still the only game in town. If you decide to go through with the treatments you can contact me and I'll share with you some tips on how to make your dads trip easier. God Bless ,Gene