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.
Causes and types of kidney stones in cats. Most cats affected by stones are middle aged or older1. Metabolic kidney stones (those formed due to a blood or urinary imbalance) are much more common in cats than infection-based stones1. Your veterinarian will determine treatment based on the kind of stone and what itâs made of. Treatment of kidney stones in cats.