https://www.vetsurgeon.org/f/clinical-questions/30167/portal-shunt-and-hyposthenuria Need some help from the clever people out there- have 6 year old m(n) small breed with confirmed PSS. Been very good on lactulose, hepatic support, occasional abs if nauseous, weight and general body condition excellent, activity excellent but now drinkingen-USTelligent Community 10