Well, my previous reply seems to have disappeared. First of all I am not well versed in alternative medicine, and ultimately I will opt out so that an alternative medicine vet could pick this up. Also, the drugs you mention have unfamiliar names, but I was able to determine all but ENam, so if you could give me more information about that I would appreciate it.
Brownie responded well to the Wepox I am assuming, and indeed this is what he needs. In CRF the kidneys don't produce the necessary erythropoetin to stimulate the bone marrow to produce red blood cells. This will measure as low in iron, but what Brownie really needs is to have the Wepox continued so that his bone marrow can respond adequately. Giving him the Dexorange will help provide the iron he will need to produce those red blood cells.
Amlokind is Amlodipine for us in the US, and this should help with Brownie's blood pressure.
Regarding Brownie's diet, I would recommend that he only eat the Royal Canin Renal Diet as this is complete an balanced. Adding the egg whites will add more protein and possibly the chicken broth also does this. Of course, it is very important that Brownie eat, so if this is how you get him to eat, then so be it! I would just minimize the rice, egg white and chicken broth and oats, to maintain the balance that Royal Canin veterinary nutritionists have formulated.
Do you have any more information about his intermittent vision loss? Does he have retinal disease? Does he have cataracts? More information may be very helpful.
So. . .before I exit, I'd like to know more about ENam, the purpose of the beetroot juice and the black tea. Is he on any other homeopathic remedies?