Safe Pain Management For Senior Dogs

If your senior dog is suffering pain, your veterinarian can determine what pain medication for dogs will help best.

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Evidence is mounting that dogs feel pain as much as  people do, but they express it differently. aralezi/iStock/Thinkstock
Evidence is mounting that dogs feel pain as much as people do, but they express it differently. aralezi/iStock/Thinkstock

It was not many years ago that even veterinarians were taught that animals don’t feel pain the same way humans do. Some people still believe this, although the evidence is mounting that pets feel pain every bit as much. They express their pain in ways that can be difficult for us to understand, and so we tend to assume they feel it less than we do.

Anyone who has owned an older dog understands the dilemma of trying to figure out when pain from arthritis or cancer is bad enough to warrant medical treatment, and deciding which treatments are worth the risk of potential side effects. In older dogs, arthritis of the hips, knees, shoulders and elbows is extremely common, as is lower back pain.

Signs That Your Dog Is In Pain
The first thing a pet owner needs to know is how to identify when a pet is in pain. These signs can signal many different types of pain, and all of them mean you should consult your veterinarian.

  • Squinting of eyes is a pretty dependable sign of pain, especially if accompanied by rapid breathing.
  • A hunched posture is often associated with abdominal or back pain.
  • Obsessive grooming, especially when it involves a particular area of the body, also signals pain. For example, if a dog is constantly licking the skin over a joint, there may be pain or inflammation in the joint.
  • Difficulty sitting or rising is often the first sign a pet owner notices.
  • Sometimes, the only obvious sign of pain may be that a dog who has always been friendly and tolerant suddenly becomes irritable or even aggressive.

Once you and your vet have established that your dog has pain that needs to be managed, you can find the optimum combination of therapies for that individual, and that array of choices is what I’m going to talk about.

5 Strategies To Alleviate Pain
1. Weight Loss:
Obviously, weight loss is not a factor in controlling pain for dogs with cancer, but it is a significant factor for many overweight dogs with arthritis. Like people, our pets also often carry around too much weight. It can be very taxing to a sore hip if it has to carry around 25 percent more weight than it was designed for. Very often, weight control is one of the most important things you can do for your older dog.

2. Supplements (Nutraceuticals): Several recent investigations have found that about 40 percent of all supplements tested either did not contain the active ingredient claimed, did not have the stated amount of active ingredient or had other ingredients that were not listed on the label. I recommend using only products that have been evaluated by Consumer Labs or a similar organization, and have been shown to contain what they say they contain. Consumer Labs tests both human and veterinary products.

For chronic pain of osteoarthritis in dogs, there is good evidence that Omega-3 fatty acids have a significant anti-inflammatory effect when given at relatively high doses. A 50-pound dog would need approximately 2,000 mg of fish oil daily to fill that need. The medical evidence for glucosamine, chondroitin and MSM is much thinner than that for Omega-3s, but some studies show that they may help. Hyaluronic acid might be helpful. And injectable polysulfated glycosaminoglycan, known as Adequan, is quite well-absorbed and has been clinically proven over the years. All of these supplements are very safe when taken in the recommended doses, and even old dogs with poor kidney function can tolerate them well.

Certain dog foods, both over-the-counter and prescription, contain glucosamine, Omega-3s or other supplements, and can be very useful.

The X-ray on the left shows arthritis in a dog's rear leg, which looks drastically different from the image on the right, which is an arthritis-free leg.

The X-ray on the left shows arthritis in a dog’s knee, which looks very different from the arthritis-free knee on the right. Courtesy of Dr. Deborah Cottrell

3. NSAIDs: Non-steroidal anti-inflammatory drugs are pharmaceuticals that are not corticosteroids (like prednisone) or opioids (like morphine or codeine). They can have different mechanisms of action, and, because of that, may have different levels of efficacy and safety in individual animals. This class of drugs includes carprofen, ketoprofen, meloxicam, aspirin, ibuprofen, naproxen and many others.

Aspirin is the only over-the-counter NSAID that is well-known to be safe, although its use in dogs is considered off-label. It’s always best to talk to your veterinarian before using it. Safer and more effective products than aspirin are available, so it should be used only as a temporary measure unless specifically recommended by your vet. If using aspirin, give only buffered aspirin, as the non-buffered form can cause significant stomach upset.

The prescription NSAIDs like carprofen and meloxicam have a very good safety and efficacy record. In my opinion, the risk of side effects is well worth the benefit. These drugs can give your arthritic pet a significant boost in quality of life with minimal risk.

Older dogs with potential liver or kidney problems may need periodic blood tests to use NSAIDs for prolonged periods. In sensitive dogs, NSAIDS can cause stomach upset or bleeding of the stomach lining, but these are not especially common side effects.

The most common problem I see with the use of NSAIDs is that owners are often afraid to use them daily as directed; they try to only use them when the dog’s pain becomes more apparent. Many of these drugs are designed to be used on a daily basis to prevent pain, rather than used reactively to treat pain after it’s already present, and will work much better if used daily. Because arthritis is not going to go away and be “cured,” this makes perfect sense.

4. Opioids: Due to their high abuse potential, drugs containing hydrocodone or oxycodone are not usually prescribed for dogs, although they can be very effective. If your dog has intractable pain, the use of these drugs may be warranted, and you should ask your vet about them.

There is only one opioid that is commonly used to treat chronic pain in dogs, and that is tramadol. By itself, it’s minimally effective for mild to moderate pain, but it works very well in combination with NSAIDs. It has a low dependence potential and is very safe. By combining NSAIDs with tramadol, you can minimize the risk of side effects, because you can use the lowest possible dose of NSAIDs.

Pain medications come in various forms, including oral and injectable. This dog is being given a pill orally.  Courtesy of Dr. Deborah Cottrell

Pain medications come in various forms, including oral and injectable. This dog is being given a pill orally. Courtesy of Dr. Deborah Cottrell

5. Other Therapies: Although acupuncture and massage therapy may be helpful, there is not much evidence that they work very well as stand-alone treatments for chronic pain. I believe these should always be used in combination with other therapies.

There are some exciting developments on the horizon, however. There are large clinical studies going on right now using stem cell therapy, which is showing great promise for canine arthritis. Gene therapy is being used experimentally right now, and only time will tell if it will prove to be helpful. Cannabis is also being examined, and extrapolations from human studies indicate it may be very effective in dogs. In fact, there is a medical cannabis product made specifically for dogs with cancer. If you want to consider its use, be sure to learn what the laws are in your state.

Easing Pain For Senior Dogs
My usual recommendation for older dogs with pain is to start small and add as needed. The first thing to do is to control weight. If that is not enough, you can start nutraceuticals such as fish oil, glucosamine and other supplements. If that still is not enough, you can add NSAIDS, with or without tramadol.

Of course, we have to consider side effects, but having seen first-hand the risk versus reward, there is no doubt that the overwhelming majority of old dogs with cancer or arthritis will have a much better quality of life with good pain control.

Article Categories:
Dogs · Health and Care

Comments

  • While this article does contain good information, dog food with glucosamine may not help that much. I may not too sure why ,but the food usually doesn’t have enough to make a difference.

    Lauren June 27, 2015 12:45 pm Reply
    • Yes, you are correct. Plus, as I said, the evidence for glucosamine being helpful for anything more than very mild pain is pretty thin. A fifty-pound dog would need at least 1500 mg for it to make any difference, and most foods don’t contain that much per feeding. You’re much better off spending the money on Omega-3’s or prescription diets like J/d, which contains a high dose of fish oil and taurine.

      Deborah Cottrell June 29, 2015 10:28 am Reply

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