The use of Ribavirin to treat chronic hepatitis C in patients receiving azathioprine has been reported to induce severe pancytopenia and may increase the risk of azathioprine-related myelotoxicity. Inosine monophosphate dehydrogenase (IMDH) is required for one of the metabolic pathways of azathioprine.
There are several common underlying causes of kidney disease. 1  In older cats Interstitial Nephritis is most frequently seen. 2  Polycystic Kidney Disease (PKD) is a very common problem in Persian cats - 20-30% of them can be affected. 3  Tumours are occasionally seen in middle-aged and older cats.
Steatitis, or yellow fat disease, is caused by a deficiency of vitamin E. Cats who are fed a diet containing excessive amounts of unsaturated fats end up with vitamin E being destroyed in their bodies.This results in a painful inflammation in the cats body fat. The fat will turn yellow and harden greatly.reatment will involve correcting the cats diet by switching her to a well-balanced food and supplementing with vitamin E. To help prevent this disease from happening in the first place by never feeding your cat any tuna, even if it is commercial cat food.