My cat was anemic with congestive heart failure and he was on pred and pimobendan and lasix for about two months with everyone(vets and specialists) telling me to put him down because he tested positive for FeLV. B12 shots turned everything around for him. He doesn’t have FeLV, he no longer has...
My cat had severe anemia and was found to also be chf. Everything was ruled out and he wasn’t getting better until I started him on B12 shots. He’s no longer in chf but does have hcm. Just be aware that doxycycline can interfere with b12 absorption. I