Aspirin Dosage For Dogs: Uses, Benefits & Side Effects

The safe minimum dosage of aspirin for dogs is 10mg/kg every 12 hours. However, for treating specific conditions, the dose can be increased to 40mg/kg. Overdosing on aspirin can be toxic to canines, so make sure to administer the ideal dose with advice from a veterinarian only.

As responsible pet owners, ensuring the health and well-being of our furry companions is paramount. However, just like humans, dogs can experience pain and discomfort for various reasons, whether arthritis, injury, or post-operative recovery. In such cases, many dog owners turn to aspirin as a solution.

Yet, administering this common over-the-counter medication to our four-legged friends requires careful consideration and understanding of the appropriate dosage.

This article delves into the intricacies of aspirin usage for dogs, including dosage guidelines, potential risks, and important considerations every pet owner should know to keep their beloved canine companions safe and healthy.

Aspirin Dosage For Dogs

The aspirin dosage for dogs can vary depending on their size, weight, and medical condition. It’s crucial to consult a veterinarian before administering any medication to your dog, including aspirin.

Aspirin dosage in dogs is approximately 10-40mg/kg (4-18 mg/lb) of body weight, given every 12 hours. However, this dosage can vary, and following your vet’s recommendations is important. Also, never give your dog coated aspirin, as the coating can harm dogs.

Always use plain aspirin and avoid giving it to dogs with certain health conditions or those taking other medications without consulting a veterinarian first.

Aspirin Dosage Chart For Dogs By Weight

Dog Weight (lbs)	Dog Weight (kg)	Low Aspirin Dosage (mg) every 12 hours	Maximum Aspirin Dosage (mg) every 12 hours
5	2.27	22	90
10	4.54	45	181
15	6.80	68	272
20	9.07	90	362
25	11.34	113	453
30	13.61	136	544
35	15.88	158	635
40	18.14	181	725
45	20.41	204	816
50	22.68	226	907
55	24.95	249	998
60	27.22	272	1000
65	29.48	294	1000
70	31.75	317	1000
75	34.02	340	1000
80	36.29	362	1000
85	38.56	385	1000
90	40.82	408	1000
95	43.09	430	1724.0
100	45.36	453	1814.8

The above aspirin dosage chart for dogs by weight is provided for educational purposes only and should not substitute for veterinary advice. Always start with the minimum dose until your veterinarian prescribes an increase in dosage.

Aspirin Uses in Dogs

Aspirin can alleviate mild to moderate pain in dogs, such as arthritis pain or discomfort following surgery or injury.
It may help lower the body temperature in dogs with fever due to infection or inflammation.
Aspirin’s anti-inflammatory properties make it useful in managing conditions like arthritis or certain skin disorders.
It can act as a blood thinner, beneficial in preventing blood clots in canines with heart disease or clotting disorders but must be used cautiously under veterinary supervision to avoid bleeding problems.

Aspirin Side Effects in Dogs

Aspirin can irritate the stomach lining, leading to symptoms such as vomiting, diarrhea, or gastrointestinal ulcers.
Prolonged use or high doses of aspirin can cause kidney damage or worsen pre-existing kidney conditions in dogs.
In some cases, aspirin may lead to liver toxicity or exacerbate existing liver problems.
Aspirin’s blood-thinning properties can increase the risk of bleeding disorders, including gastrointestinal bleeding or bruising.
Dogs may experience allergic reactions to aspirin, resulting in symptoms such as itching, hives, or difficulty breathing.
Long-term use of aspirin in dogs has been associated with hearing loss, particularly at higher doses.
Although rare, Reye’s syndrome—a serious condition affecting the brain and liver—has been reported in canines following aspirin administration, especially in young puppies.

Which Dogs Should Not Take Aspirin.

Canines with the following health issues should not take Aspirin without veterinary recommendations.

Dogs with pre-existing health conditions such as kidney disease, liver disease, gastrointestinal ulcers, bleeding disorders, or clotting disorders.
Puppies, especially those under six months of age.
Pregnant or nursing dogs.
Dogs allergic to aspirin or those who have shown signs of allergic reactions.
Dogs taking other medications, especially corticosteroids, NSAIDs, or anticoagulants.

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