Aspirin Dosage Chart for Dogs: Risks, Benefits, and When to Be Worried

Written by Austin S.
Updated: January 24, 2023
© iStock.com/Cunaplus_M.Faba
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Humans have made it second nature to reach for an aspirin pill when they feel any type of pain. Remember how that aspirin helped alleviate that headache you constantly have? Aspirin is a pain reliever that helps to relieve different kinds of pain. These pains include headaches, stomach aches or cramps, and muscle aches. 

While that aspirin pill knocks out your headache, it is not good to administer it to your pet dog for pain. Dogs and humans are different creatures with different biological systems. The drugs that work for humans can contain some chemical components harmful to pets and other animals. When your dog is in pain, the best thing to do is contact a veterinary doctor to be sure of the nature of the pain. 

When considering administering aspirin to your dogs, you do so with strict adherence to a veterinary doctor’s prescription. It means that you should not administer aspirin to your dog without a vet’s prescribed dosage. This article will discuss how aspirin affects dogs, how to measure the dosage, and what to look out for.

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When Do Dogs Need Aspirin?

Dogs are very energetic and active animals. They can spend a whole day running around and playing. They’re also curious animals, and their curiosity can get them injured sometimes. Imagine your dog got stung by a few bees or injured in a fight. That dog will be in pain and discomfort.

The same way humans take aspirin for pain, dogs can take aspirin for pain. It also helps to reduce inflammation in dogs. Aspirin works the same way in dogs by blocking pain-regulating cells. However, do not administer aspirin to your dog without knowing the side effects it can cause.

Side Effects of Aspirin on Dogs

Administering aspirin to a dog can have side effects. Dogs will react differently because it is a drug for the human biological system. These effects are common in dogs, and you should look out for the following symptoms:

  • Ulcer. This can be a result of administering the drug long-term. Symptoms in dogs include bloody stool showing bleeding in your dog’s stomach.
  • Vomiting
  • Tarry and black feces
  • Diarrhea 
  • Gastric erosion. This is an inflammation of the mucus membrane in the stomach.

Signs of Aspirin Overdose/Allergies in Dogs

It is important to know the difference between the side effects and signs of aspirin overdose in your dog. When you’re giving your dog too much aspirin, you will see the following symptoms:

  • Coma
  • Hemorrhage – ruptured blood vessel causing blood loss
  • Diarrhea
  • Vomiting
  • Lack of appetite
  • Seizure
  • Death
  • Lethargy

Looking out for these symptoms should not be limited to when you administer aspirin alone. Watch how your dog reacts to any new medication you administer. 

Risks to Consider

Imagine an injured dog that’s also in pain. The aim of its treatment will be healing and pain reduction, right? Administering aspirin is not the best option in such a scenario. Aspirin reduces your dog’s healing ability. Aspirin stops the production of prostaglandis, which your dog needs to heal. Prostaglandis is a part of your dog’s natural healing phase. A prolonged dosage of aspirin can cause joint issues for your dog.

When Is Aspirin Not an Option for Your Dog?

There are situations where administering aspirin to your dog can be deadly. Some health issues in dogs can cause fatal results when they interact with the drug. Puppies should not take aspirin in any form. Aspirin should not be administered while your dog is on any other medication. The following health conditions can cause deadly results when aspirin is administered:

  • Von Willebrands’ disease – a disorder that prevents proper blood clotting
  • Dogs recovering from an injury or surgery
  • Dogs deficient in Vitamin K
  • Liver and kidney disease
  • Dogs with an internal ulcer or bleeding complications

Aspirin should not be given to pregnant and nursing dogs. Dogs that are on corticosteroids also should not take aspirin. To ensure you’re not putting your dog in fatal danger, make sure they are not affected by any condition mentioned here.

Aspirin for Dogs Dosage Chart

As stated earlier, consult your veterinary doctor before giving your dog aspirin. When you administer aspirin within your vet’s prescription, you work with an expert’s guide. Aspirin dose measurement for dogs can be done based on the dog’s weight. The more your dog weighs, the more dose of aspirin you can administer. This aspirin for dogs dosage chart offers a guide to how many doses of aspirin your dog can take. We haven’t included a separate low dose aspirin for dogs chart because it only applies to dogs 10 pounds or under. The chart below lists dosages of a half or a whole baby aspirin – which is the same as a low dose aspirin.

Dog’s Weight (Pounds)Aspirin DosageDog Breeds Include
0 – 5 25 to 50 milligrams/ half of baby (low dose) aspirinPomeranian and Chihuahua
5 – 1050 to 100 milligrams/ one baby (low dose) aspirinBoston Terrier and Pekingese
10 – 20100 to 200 milligrams/ half of adult aspirinWest Highland Terrier and Pembroke Welsh Corgi
20 – 30150 to 300 milligrams/ half of adult aspirinBeagle and Cardigan Welsh Corgi
30 – 40200 to 400 milligrams/ one adult aspirinVizsla and Samoyed
40 – 50250 to 500 milligrams/ one to one and half of adult aspirinIrish Setter and Airedale Terrier
50 – 60300 to 600 milligrams/ one to two adult aspirinLabrador and Golden Retrievers, and Staffordshire Terrier
60 – 70350 to 700 milligrams/ one to two adult aspirinChow Chow, American Staffordshire Terrier, and Dalmatian
70 – 80400 to 800 milligrams/ two adult aspirinCane Corso, Rottweiler and Akita
80 – 90450 to 900 milligrams/ one and a half to two and half of adult aspirinChinook, Bloodhound, and German Shepherds
90 – 100 +500 to 1000 milligrams/ two to three adult aspirinGreat Dane, Saint Bernard, and Bullmastiff

Note that the chart above presents a guide to aspirin dosage and not a prescription. The dosage can be administered based on your vet’s prescription or once at 12-hour intervals. Also, ensure that aspirin for humans should not be administered to your dog for over 5 days.

Alternatives to Aspirin for Dogs

There are certain drugs and products that can be taken in place of regular aspirin. These products are better engineered to minimize the occurrence of side effects. 

Aspirin is a type of Nonsteroidal antiinflammatory drug(NSAIDs). Other types of these drugs can also be given to your dog. Of course, they also require a vet’s prescription. The other types of NSAIDs include firocoxib, carprofen, and deracoxib. 

There are also non-medication alternatives that you can consider. They can include natural products that work as pain relievers and specific products for specific types of pain. These products include

CBD Products

Cannabidiol is a popular product for alleviating pain. CBD is an active cannabinoid in marijuana that’s used to treat different types of pain. It is one of the safest forms of pain relievers in the world. CBD is a good and popular product for helping dogs with pain. It can be used for injured dogs and a dog with a disease. There are no chemicals present in this product

Best Tincture
Osiris organics Pet Tincture
  • U.S.A.-grown
  • Formulated just for pets
  • Contain organic extra-virgin olive oil
  • Contain phytocannabinoid-rich hemp
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Flexpet

Flexpet is a supplement used to treat joint pain in pets. They decrease inflammation in joints, improve joint movement and reconstruct damaged joint tissues. This product is also a natural product which makes it safe for your dogs

Best Supplement
Flexpet CM8 Joint Health Dog & Cat Supplement, 60 count
  • 80% effective pain reliever
  • All-natural joint supplement
  • Safe
  • The only supplement with CM8, an ingredient that lubricates joints and reduces swelling
  • Reduces the need for ongoing pain medication
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Tumeric Products

Products that have high Tumeric ingredients are good alternatives. Tumeric is a natural source of Curcumin which helps alleviate joint pain. 

Best Turmeric Supplement
Zesty Paws Turmeric Curcumin Bites Bacon Flavored Soft Chews Multivitamin for Dogs
  • Available in duck and bacon flavors
  • Provides joint and digestive support
  • Extra-strength soft chews contain 95% curcuminoids for joint pain relief, digestive and immune health
  • Features coconut oil for weight management, brain function, and energy levels
  • Also promotes liver and skin health
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Buffered Aspirin

Buffered aspirin is a drug for treating arthritis, pain, and joint inflammation in dogs. This aspirin is a mixture of antacid and aspirin. It reduces stomach upset by neutralizing acids in the stomach. This drug can be given to dogs of any weight and age for inflammation and pain issues.

Best Buffered Aspirin
Nutri-Vet Aspirin Medication for Pain for Small Breed Dogs
  • Liver flavored
  • Chewable
  • Provides temporary pain and inflammation relief
  • Buffered to reduce stomach upset
  • Made in the U.S.A.
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Better Health

The pain your dog is feeling can be because of unhealthy practices. When your dog’s diet is low in some nutrients, it affects your dog’s health. These nutrients include vitamins and protein. Allergies can also be the cause of your dog’s troubles. Identify what your dog might be allergic to and react to. Remove it from your dog’s environment and system, and you might not need to administer drugs. 

It is also common for obese dogs to experience pain in their joints. In this case, physical therapy and exercise are what your dog needs. Paying close attention to your dog’s health will save you time and money over treatment.

How to treat aspirin overdose in dogs

The first step is to take your dog to your veterinary doctor as soon as possible. At the vet, you need to determine the toxicity level of the drug in your dog. Knowing this will help determine the course of treatment for your dog.

Usually, your dog has a window of about 12 hours from when overdose starts before fatality. Waiting till this window closes can be fatal and irreversible. Treatments like blood transfusion and intravenous fluids can be used for your dog. Any damage to the organs will require surgery. These can only be done when you go to your veterinary doctor.

Conclusion

Now you know the dosage guide for giving your dog aspirin. Do not forget the first step in giving your dog any kind of medical care, contact your veterinary doctor. Dogs cannot be subject to all human medication without some side effects. Dogs with underlying medical issues should be given special care in administering drugs. Always contact your vet to get the right dosage for any medication you give your dog.

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The Featured Image

Owner handing a pill to a puppy
In general, the proper aspirin dosage is determined by a dog's weight.
© iStock.com/Cunaplus_M.Faba

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About the Author

Growing up in rural New England on a small scale farm gave me a lifelong passion for animals. I love learning about new wild animal species, habitats, animal evolutions, dogs, cats, and more. I've always been surrounded by pets and believe the best dog and best cat products are important to keeping our animals happy and healthy. It's my mission to help you learn more about wild animals, and how to care for your pets better with carefully reviewed products.

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