I am a bit late to this thread, but my question does relate to this. My guinea pig has serious dental problems, and has a lot of problems eating. The vet says it cannot be treated, all his teeth are bad some require to be pulled, but he cannot pull all of them of course. My guinea pig - Ed - has been at the vet's multiple days. Now he's home again since yesterday, and I've been syringe feeding him. He's on Loxicom as a painkiller (the dose for an animal of 10 kg (the full syringe, I believe it's 1ml). He's only eating very little next to the syringe feeding. He seems to not be able to chew because he does want the food I believe - at least he is taking it in his mouth and tries to chew it, sometimes he manages to eat a little, but mostly he makes weird movements with his lips and he gives up after a while of trying. Is it dangerous to give more painkillers so he maybe will be able to chew without pain? It just breaks my heart to see him trying, but not managing to eat, and I am just so surprised by how quickly his condition has deteriorated in the past week. I just wish he would eat something.