Always check with your vet if your dog is taking any medication to see if the medication could contribute to aggression, or if the aggression may be a reaction to the medicine. Some common medications that can contribute to aggression: Prednisone or other corticosteroids, NSAIDs, including Rimadyl. Phenobarbital (required medication for seizures), but may be successful in treating aggression related to seizures.
Prednisone is a steroid used to reduce inflammation. It may be used to treat inflammation, Cancer, Addison’s Disease, and Nervous System Disorders.(1)
Rarely, some medications prescribed for aggression can have the opposite effect, so careful monitoring should be done to determine if the medication is helping or making things worse.
Keep in mind that any dog who is not feeling well may show aggression. Read more on medical conditions that can contribute to aggression
**Aggression categories complied from:
Clinical Behavioral Medicine for Small Animals, Karen L. Overall, M.A., V.M.D., Ph.D. Diplomate, American College of Veterinary Behavior, Department of Clinical Studies, School of Veterinary Medicine, University of Pennsylvania, Philadelphia. Pennsylvania, Mosby, Inc. 1997
The Dog Who Loved Too Much: Tales, Treatments, and the Psychology of Dogs, Dr. Nicolas Dodman, BVMS, MRCVS, Bantom Books, 1997
(1) Prednisone Prednisolone, WebMD, http://www.petmd.com/pet-medication/prednisone-prednisolone