How Much Rimadyl is Too Much for Dogs?

Doses of 9 mg Rimadyl per pound of body weight can lead to serious side effects and should be avoided. If you have any concerns about your dog’s medication, do not hesitate to contact your veterinarian for guidance. While Rimadyl can be effective in managing pain, the potential for side effects and overdosing has led to concerns about its safety and appropriate use.

How much rimadyl is too much

What happens if you give a dog too much Rimadyl?

If you give your dog too much Rimadyl, they may experience some or all of the following side effects:

  • Vomiting and diarrhea: These are common side effects of NSAIDs in dogs, and they can be caused by irritation of the gastrointestinal tract. If your dog is experiencing these symptoms, it is important to contact your veterinarian for guidance.
  • Loss of appetite: Rimadyl may cause a loss of appetite in some dogs, which can lead to weight loss and malnutrition if not addressed.
  • Changes in behavior: Some dogs may become lethargic or exhibit changes in behavior, such as increased aggression, after taking Rimadyl.
  • Kidney damage: Rimadyl can cause kidney damage in some dogs, especially if they are already suffering from kidney disease. This is a potentially serious side effect that requires immediate medical attention.
  • Ulcers: Rimadyl may increase the risk of ulcers in the gastrointestinal tract, which can cause abdominal pain, vomiting, and diarrhea.

Rimadyl for dogs reviews

Rimadyl (carprofen) is a nonsteroidal anti-inflammatory drug (NSAID) used to treat pain and inflammation in dogs. It is commonly used to alleviate pain associated with arthritis, surgery, and other conditions that cause inflammation in the joints.

Pros of Rimadyl for dogs:

  • Effective at reducing pain and inflammation in dogs
  • Available in multiple forms (tablets, chewable tablets, and injectable solution) for easy administration
  • Can be used in conjunction with other pain relief medications

Cons of Rimadyl for dogs:

  • Can cause gastrointestinal side effects, such as vomiting and diarrhea
  • Can cause liver and kidney damage if used long-term or at high doses
  • Can cause allergic reactions in some dogs

Side effects of Rimadyl for dogs:

  • Gastrointestinal issues (vomiting, diarrhea, loss of appetite)
  • Increased thirst and urination
  • Fatigue and lethargy
  • Changes in behavior (agitation, anxiety, aggression)
  • Changes in urine color or odor

Adverse reactions to Rimadyl for dogs:

  • Severe gastrointestinal issues (ulcers, perforations, bleeding)
  • Liver or kidney damage
  • Allergic reactions (hives, swelling, difficulty breathing)

Toxicity of Rimadyl for dogs:

  • Overdose or long-term use at high doses can lead to liver or kidney damage
  • Symptoms of toxicity include vomiting, diarrhea, loss of appetite, lethargy, and changes in urine color or odor
  • Seek veterinary care immediately if your dog experiences these symptoms

Drug interactions of Rimadyl for dogs:

  • Do not use with other NSAIDs or corticosteroids without veterinary guidance
  • Avoid using with medications that affect liver or kidney function
  • Consult with your veterinarian before giving Rimadyl with any other medications your dog is taking

Contraindications of Rimadyl for dogs:

  • Do not use in dogs with pre-existing liver or kidney disease
  • Do not use in dogs with bleeding disorders or those on anticoagulant therapy
  • Do not use in pregnant or nursing dogs without veterinary guidance

Rimadyl complaints

There have been numerous complaints about the safety and effectiveness of Rimadyl, leading to concerns about its use in pets.

One of the main complaints about Rimadyl is the risk of serious side effects, including stomach ulcers, liver damage, and even death. These side effects can occur even with proper dosing and can be difficult to recognize until it is too late.

Another complaint about Rimadyl is that it may not be as effective as other pain relief options, such as natural remedies or other NSAIDs. Some pet owners have reported that their dogs continued to experience pain and discomfort despite being on Rimadyl, leading to the need for additional treatment.

There have also been complaints about the cost of Rimadyl, as it can be expensive to purchase and maintain a prescription for long periods of time. This can be a burden for pet owners, especially those with multiple pets or those on fixed incomes.

Despite these complaints, Rimadyl is still widely prescribed for pets and can be an effective option for managing pain and inflammation.

What are the side effects of Rimadyl for dogs?

While it can be effective in relieving discomfort in dogs, there are several potential side effects to be aware of.

One of the most common side effects of Rimadyl is gastrointestinal upset, including vomiting, diarrhea, and loss of appetite. Dogs may also experience changes in their behavior, including lethargy, changes in appetite, and changes in sleep patterns.

Other potential side effects of Rimadyl include:

  • Kidney problems: Rimadyl can cause changes in the way the kidneys function, leading to kidney damage or failure in some cases.
  • Liver problems: Rimadyl has been known to cause liver damage in some dogs, leading to symptoms such as yellowing of the skin and whites of the eyes (jaundice), vomiting, and changes in appetite.
  • Allergic reactions: Some dogs may experience allergic reactions to Rimadyl, including hives, swelling of the face, and difficulty breathing.
  • Other possible side effects: Rimadyl may also cause stomach ulcers, bleeding disorders, and changes in blood pressure.

It is important to discuss the potential side effects of Rimadyl with your veterinarian before starting your dog on the medication. Your vet will be able to monitor your dog for any adverse reactions and adjust the dosage as needed.

How long does it take for Rimadyl to work on dogs?

The length of time it takes for Rimadyl to work on dogs can vary depending on the individual dog and their specific condition. In general, it is recommended to give the medication to your dog at least one hour before any activity to allow for it to take effect.

Some dogs may experience relief from pain within a few hours of taking Rimadyl, while others may take up to three days to fully experience the benefits. It is important to be patient and continue administering the medication as prescribed by your veterinarian until the full course has been completed.

Rimadyl may not completely eliminate all pain and discomfort in your dog. It is meant to help manage and alleviate pain, but it may not completely eliminate it.

How long can a dog stay on Rimadyl?

In general, Rimadyl can be safely administered to dogs for short-term use, usually up to 7-10 days. However, some dogs may require longer treatment courses, especially if they are suffering from chronic pain conditions such as arthritis. In these cases, it is important to monitor the dog closely for any potential side effects and to consult with a veterinarian before continuing treatment.

Does Rimadyl make dogs tired?

While Rimadyl can help alleviate pain and inflammation in dogs, it can also cause drowsiness and lethargy as a side effect. This is because the drug works by blocking the production of prostaglandins, which are chemicals involved in the body’s inflammatory response. Prostaglandins also play a role in maintaining alertness and wakefulness, so blocking their production can cause drowsiness.

Not all dogs will experience drowsiness from Rimadyl. Some dogs may be more sensitive to the drug and may experience more severe drowsiness, while others may not be affected at all.

If your dog is taking Rimadyl and seems excessively sleepy or lethargic, it’s important to contact your veterinarian. Your veterinarian may adjust the dosage or recommend a different medication if necessary.

Rimadyl killed my dog?

While it can be effective in treating certain conditions, it can also be dangerous and even deadly for some dogs. Here are some important things to know about Rimadyl and its potential risks:

Rimadyl can cause liver and kidney damage in some dogs. This is a common side effect of NSAIDs and can be severe, resulting in organ failure and death. Your veterinarian should monitor your dog’s liver and kidney function regularly while on Rimadyl, and you should be aware of the signs of liver and kidney problems, such as loss of appetite, vomiting, lethargy, and jaundice.

Rimadyl can interact with other medications. NSAIDs can interfere with the metabolism of certain drugs, including steroids, anticoagulants, and some antibiotics. This can increase the risk of side effects and make it more difficult to treat your dog’s condition. Always let your veterinarian know about any other medications your dog is taking before starting Rimadyl.

Rimadyl can cause stomach ulcers and bleeding. NSAIDs can irritate the lining of the stomach and intestines, leading to ulcers and gastrointestinal bleeding. This can be a serious and potentially life-threatening complication, so your veterinarian should monitor your dog’s stomach and intestinal health while on Rimadyl.

Rimadyl is not suitable for all dogs. Some dogs may be more susceptible to the side effects of NSAIDs, such as those with liver or kidney disease, stomach ulcers, or bleeding disorders. Your veterinarian should assess your dog’s overall health and any existing conditions before prescribing Rimadyl.

Rimadyl should be used with caution in senior dogs. Older dogs are more likely to have liver and kidney problems, and they may be more sensitive to the side effects of NSAIDs. Your veterinarian may recommend a lower dose or alternative treatment for your senior dog.

“We adopted a dog a few months ago who had been on Rimadyl. The day after we got him, he started having seizures. We took him to the vet and they said his liver enzymes were high, but they didn’t know why. After another seizure, they finally told us that it was probably Rimadyl (which he had stopped taking days before). He seemed fine for a while, but then his seizures kept coming back even though he was no longer taking the medication. Now he is dead.”

“We adopted a dog, he was 12. We had him for 3 years, and he only started having problems with arthritis just in the last few months of his life. When he started limping and being stiff I took him to the vet, who prescribed Rimadyl. We were hoping it would help, but instead it killed him. After taking the first pill he had a bad reaction, throwing up, drooling, and having diarrhea. I took him back to the vet and told them about his reaction. They said to stop giving him that pill and gave me another one called Deramaxx as an alternative. We gave him that pill instead and just a few days later he died.”

“My dog, Maggie, was a 10-year-old golden retriever. She was a very healthy and happy dog until my husband gave her Rimadyl for arthritis. Within hours, her liver failed and we had to put her down. I would like to know how many other dogs have died from this medicine. My husband is still grieving over this and so am I. We do not want to see another dog lost to the same medication that took our sweet Maggie from us.”

“I’ve been looking into this for quite a few years. My experience with Rimadyl was very negative. Sadly, I had to have my beloved dog put down because of it.”

Alternative to Rimadyl for dogs

If you’re looking for alternatives to Rimadyl for your furry friend, there are several options to consider. Here are some of the best alternatives to Rimadyl for dogs:

Deramaxx: This is a non-steroidal anti-inflammatory drug (NSAID) that is commonly used to manage pain and inflammation in dogs. It’s an effective alternative to Rimadyl for dogs that are suffering from arthritis or other joint conditions.

Zylkene: This is a natural supplement that is made from a protein found in milk and is commonly used to help dogs manage anxiety and stress. It’s a great alternative for dogs that are sensitive to traditional medications or have trouble taking pills.

Turmeric: This spice is known for its anti-inflammatory properties and is often used to manage pain and inflammation in dogs. It can be given as a supplement or added to your dog’s food.

Acupuncture: Acupuncture is an ancient Chinese practice that involves the insertion of needles into specific points on the body to stimulate healing and reduce pain. It’s a great alternative for dogs that are sensitive to medications or have underlying health conditions that make traditional treatments inappropriate.

Chiropractic care: Chiropractic care involves the manipulation of the spine and joints to improve mobility and reduce pain. It’s a great alternative for dogs that are experiencing joint or muscle pain and can help improve the overall quality of life.

Glucosamine and chondroitin: These supplements are often used to support joint health in dogs and can help reduce pain and inflammation. Some popular brand names include Cosequin, Dasuquin, and Flexadin.

Omega-3 fatty acids: These healthy fats are known for their anti-inflammatory properties and can help reduce joint pain and swelling in dogs. Some popular brand names include Wild Alaskan Salmon Oil, Grizzly Salmon Oil, and Vetoquinol Omega 3 Liquid.

Arnica: This is a natural herb that is often used to manage pain and inflammation in humans and animals. It can be given as a supplement or applied topically as a cream or ointment. Some popular brand names include Arnica Montana and Arnica Gel.

CBD oil: This is a natural extract from the cannabis plant that is believed to have anti-inflammatory and pain-relieving properties. It’s available as an oil or in capsule form and can be given to dogs orally or applied topically. Some popular brand names include HolistaPet, Innovet CBD, and King Kanine.

Physical therapy: Physical therapy involves the use of exercises, stretches, and other techniques to improve mobility and reduce pain in dogs. It’s often used in conjunction with other treatments and can be performed by a trained physical therapist or at home with the guidance of a veterinarian.

Conclusion of Rimadyl for dogs


  • Rimadyl is a highly effective non-steroidal anti-inflammatory drug (NSAID) that can help alleviate pain and inflammation in dogs suffering from conditions such as osteoarthritis, hip dysplasia, and post-surgical pain.
  • Rimadyl is relatively safe for use in dogs when used as directed, with the most common side effects being mild gastrointestinal issues such as vomiting and diarrhea.


  • Rimadyl can have more serious side effects in some dogs, including liver damage, ulceration of the gastrointestinal tract, and even death in rare cases.
  • Rimadyl should not be used in dogs with pre-existing liver or kidney problems, as it can worsen these conditions.
  • Rimadyl may interact with other medications your dog is taking, so it is important to discuss any potential drug interactions with your veterinarian.

Overall, Rimadyl can be an effective and useful tool for managing pain and inflammation in dogs, but it is important to weigh the pros and cons and discuss any potential risks with your veterinarian before starting your dog on this medication.


Hannah Elizabeth is an English animal behavior author, having written for several online publications. With a degree in Animal Behaviour and over a decade of practical animal husbandry experience, Hannah's articles cover everything from pet care to wildlife conservation. When she isn't creating content for blog posts, Hannah enjoys long walks with her Rottweiler cross Senna, reading fantasy novels and breeding aquarium shrimp.

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