According to fidosavvy.com, the recommended dosage for dogs taking human aspirin is between 5mg and 10mg per pound of body weight, given twice a day (once every 12 hours). It's helpful to know that a standard adult size is 320 mg and a baby size is 80mg. read more
It’s helpful to know that a standard adult size is 320 mg and a baby size is 80mg. If your dog weighs 40 lbs, the recommended dosage for him would be 200 mg, or 2.5 baby aspirin. Anything over 30mg per pound is considered toxic. read more