Tramadol is another drug that has been used successfully in recent years. It is a man-made narcotic-like pain reliever ( analgesic) used to treat moderate to severe pain and it really helps!! I have had my last three older Collies on this drug, in combination with either Rimidyl or Metacam. It is not without side effects, so watch carefully any dogs that are on it. I currently have a 13½ girl on Metacam in the morning and two Tramadols morning and evening. It is only available from a Veterinarian and it’s a popular people drug too!