How Quickly Does Rimadyl Work?

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How Quickly Does Rimadyl Work?
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Watch closely how your dog walks, runs and sits. If the dog is using an altered gait, favoring one leg, moving slowly, losing balance or in obvious pain, the cause may be canine arthritis or hip dysplasia. Rimadyl is a prescription medication for relieving the pain of canine arthritis or post-surgical pain.

Quick Action

If your veterinarian prescribes Rimadyl, decide on the best method of administering the drug. This anti-inflammatory medication works around the clock, is administered once a day and comes in various forms. Within three hours after administering Rimadyl, the drug reaches its highest concentration in the bloodstream.


The drug acts more quickly when administered orally. The easiest method is liver-flavored chewable tablets. The usual prescribed dose is 1 mg per pound of body weight. Rimadyl also comes in caplet form. In both forms, the drug will be eliminated from the dog's system within 24 hours. Injectable Rimadyl can be administered by a certified veterinarian. When administered this way before surgery, the drug takes effect within two hours.


Side Effects

Watch your dog for any signs of intolerance of the drug, which can appear within one hour. Possible side effects include stomach upset, vomiting, lethargy, heavy breathing and liver failure. If any signs appear, discontinue the drug and have a veterinarian examine your dog immediately.

Always check with your veterinarian before changing your pet’s diet, medication, or physical activity routines. This information is not a substitute for a vet’s opinion.


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