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.
The bacteria and viruses that most commonly cause upper respiratory infections (URIs) in cats are: 1  Feline herpesvirus type-1 (FHV-1); also known as feline viral rhinotracheitis (FVR) 2  Feline calicivirus (FVC) 3  Bordetella bronchiseptica (B. bronchiseptica)  Chlamydophila felis (C. 1  felis) Less commonly, Mycoplasma  spp.