As I mentioned in an earlier thread my new cats Heidi and Huxley, have had runny poo ever since I got them (almost 3 weeks ago). They have been on 2 courses of antibiotics and now samples have been sent off for analysis. In the meantime, after a recommendation from Puurs members, I discussed probiotics with my vet who then suggested I try them on natural live yoghurt. I have been putting it down since Monday night and now Heidi and Huxley are really tucking into it. I wondered does anyone know if this were to work how long would it be before I should expect to see some results?