ANSWER: Ibuprofen is seriously toxic to dogs -- one 200-milligram tablet can kill small and medium-sized dogs. If you know your dog ate ibuprofen, call your vet immediately, even if you don't notice symptoms of poisoning in your dog. The dog should receive activated charcoal, which should absorb the ingested paracetamol. The vet will also apply liquid therapy. A paracetamol overdose may be treated with an antidote, known as acetylcysteine (or N-acetylcysteine or NAC), which can prevent liver damage and allow the body to recover. Dosage and how often to give it. How to give ibuprofen to your child. Giving ibuprofen with other painkillers. Side effects in children. It has fewer side effects than ibuprofen and is the safer choice for most people. Always follow the instructions that come with your medicine.Mar 07, 2015 · Ibuprofen is obviously not the right one, but you can use the natural item, Dog Pain Away, for great results. Another option that many dog lovers swear by is Mobility Care, made by Pet Vitalix. Finally, you should speak with a veterinarian to determine if a low dose of aspirin would be appropriate for your pet.