Aspirin Dosage for Dogs, Benefits, Chart, Risks, Weight, Overdose and Side Effects

Aspirin Dosage for Dogs

Acetylsalicylic Acid is a Non steroidal Anti Inflammatory drug commonly called Aspirin. 

Aspirin is good in relieving pain, fever and they are mostly used by human beings.

Importance of Aspirin

Many Veterinarians provide aspirin to dogs that are having more inflammation, generally, aspirin is an anti-inflammatory drug that is given to reduce the pain and fever in the dog’s body. If your dogs get any wounds with bleeding means aspirin will be given.

Other Benefits of using Aspirin

There are many pain killer drugs like Aspirin, Ibuprofen, and naproxen. Instead of using other medicines, Aspirin is the best one to relieve pain for your dogs. This aspirin drug blocks the Prostaglandins in order to free them from wounds and pains, and also Aspirin is used for many purposes such as:

  • Osteoarthritis
  • Musculoskeletal
  • Blood Clotting or swelling
  • Fever
  • Other Inflammation

How much Aspirin should be given to my dog?

Aspirin can be given to Dogs only on certain aspects; this aspirin dosage is given to them.

Dosage ranges from 25 mg to 500mg is given to dogs, only based on their weights this dosage can be changed. And tablets are given every 12 hours.

And the given Aspirin tablets are in the range of ⅓ or 6 baby aspirin dosage is given which is equal to aspirin of 1 ½ of human adults.

DOSAGE CHART by Blogpetcare

Weight (lbs)Tablets for every 12 hoursDosage in (mg)
5⅓ Baby aspirin25 
8 – 10½ Baby Aspirin40 or 50
11 – 161 Baby Aspirin75 or 80
16 – 201 ⅓ Baby Aspirin100
20 – 281 ½ Baby Aspirin100
28 – 322 Baby Aspirin150 or 160
32 – 402 ⅓ Baby Aspirin200
41 – 482 ½ Baby Aspirin200 or 240
48 – 503 Baby Aspirin240 or 250
50 – 603 ⅓ Baby Aspirin250 or 300
60 – 643 ½ Baby Aspirin300 to 320
64 – 704 Baby Aspirin350
70 – 805 Baby Aspirin350 to 400
80 – 966 Baby Aspirin400 to 480

*Note: Before using the right dosage counseling, veterinary is most recommended.

Risk of Dog while giving Aspirin

If you are not getting veterinary consultation, and you will make mistake if you are lack knowledge, the list of mistakes or risks you face during giving aspirin such as:

  • High Dose of Non-Steroidal Anti Inflammatory Drug (Aspirin)
  • If a dog is already suffering from an unwanted disease, you should not use drugs, because these drugs are very sensitive, and there may be severe side effects.

When Should not be Aspirin not be taken?

If your pet has the following conditions, it may not use Aspirin at this stage. The conditions are:-

  • If your dog has Ulcer Problems
  • Kidney related problems
  • Liver Disease
  • Deficiency in Vitamin K (Clotting of Blood)
  • Should not use Aspirin if a dog has already taken any medications for any surgery
  • Not to use during Pregnancy Time.

Side Effects

Aspirin is not recommended when your dog showing any side effects

The side effects such as Vomiting, Diarrhea, Ulceration, etc.

When these side effects are found on your dog, immediately take your pet to any Veterinarians, this happens mostly due to overdose and giving wrong tablet usage as per the weight given in the chart.

Side Effects on Overdose usage in Aspirin

And sometimes due to overdose, there may be a loss of appetite, Coma and death may happen. The owners should notice their pet when they are giving any medications, especially notice their behavior activity level this may be a signal for side effects.

Side effects on Long term usage of Aspirin:

If aspirin is used for the long term continuously means your pet dog may get some health issues such as

  • Stomach Ulcers
  • Damage the Kidney
  • Stomach problems
  • Becomes Inactive.
  • Blood Vomiting
  • Sometimes there may be a low breath rate.


Hope you got some idea what are the things that should be kept in mind, while you’re using Aspirin Dosage for your dogs.

Consulting Veterinary is to be strongly recommended, don’t make the decision on yourself if you are a beginner to your pets.

If anyone who reads this article has used aspirin or any anti-inflammatory drugs, kindly share your experience with us. 

Aspirin Dosage For Dogs FAQ

Can I give Aspirin dosage to my Dog?

As my recommendation, you should not give aspirin to your dog, Only after consulting the veterinary prescribed dosage should be used. Should not be used without the advice of a veterinarian.

How much Aspirin is Safe for Dogs?

The safest aspirin dosage for dogs is 10 – 40 mg/kg. And clearly mentioned the dosage chart in our blogpetcare website.

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