Does anyone have experience with old cat please? Our old boy is almost 21. He's on medication for kidneys and drinks loads and loads of water. He went to the vet on Wednesday as he's been constipated. Vet gave him lactulose to take twice daily. Still no movement just one or two tiny hard pellets per day. He ate all his breakfast and is still after more food constantly. He must be really backed up inside with not going to the toilet for so long. He can't seem to sit down properly and often stands starting at his water bowl, into space or at the wall. He can't settle seems to have trouble staying still and even getting up and down from his bed. He is forever backwards and forwards to his litter tray for big wees. But he still cleans himself and eats like a horse.
Does anyone know how long lactulose takes to work and what happens if it doesn't?