That's wonderful news for you and I can imagine your relief. One more option with hyperthyroidism, if the medication doesn't work, is getting rid of the thyroid with a radioactive isotope - though they are still on pills for life. Have you seen the new pill pockets at your vet? I haven't tried them but they appear to be popular. Of course if the pill is bitter, and many of them are, this probably won't work. I did give my Artful Dodger Tapazole for a short time (he had CRF and heart disease as well and it made the CRF worse) but I can't remember whether this is an especially large or bitter medication. Have you thought of giving your husband an extra special Valentine's gift in exchange for his giving the cats their pills?!