Nutri-Vet Aspirin liver flavor chewables provide temporary pain relief for dogs and reduces inflammation associated with arthritis and joint problems. For dogs 50 pounds and over. Directions: Directions for Use: Consult your veterinarian prior to use. Give 5mg per 1lb of body weight every 12 hours (approximately 1 chewable tablet per 50 lbs body weight every 12 hours). CAUTION: NSAIDs (aspirin) are approved by the FDA for use with dogs over 6 months of age. If your dog experiences vomiting, diarrhea, not eating/eating less and/or lethargy please stop administering the medication and contact your veterinarian immediately. Aspirin is for occasional use and should not be used long term unless advised by a veterinarian.