Sybil, with Tizzy. Will see how it goes but no more Cerenia for us, Interesting that it was second dose for your cat too. Good luck with your old friend. Although Cerenia tablets arent licensed to be given to cats, some DVM texts advise that this is possible for certain selected cases. That mating produced a Russian Black femaleTchornia Ludmila dAffranchi. With best wishes When I first started to be interested in breeding Russian Blacks and Russian Whites they were my first port of call but I dont have a scientific mind and it took me some time to comprehend the information within them. A persistent increase in SDMA above 14 g/dl suggests reduced renal function and may be a reason to consider a dog or cat with creatinine values <1.4 or <1.6 mg/dl, respectively, as IRIS CKD Stage 1.