Experienced and professional animal trainer provide their insights in answering this question :
A. No it has a very narrow toxic range. You need to use appropriate animal pain relief from your vet.

How to Identify Common Pet Problems ?

Our sources include academic articles, blog posts, and personal essays from experienced pet care professionals :

Many pain medications considered safe for people can be toxic or even fatal for dogs. Never give your dog aspirin, ibuprofen (Advil), acetaminophen (Tylenol), or any other medication designed for humans without first consulting your vet.
NSAID options that are approved for use in dogs include carprofen (e.g. Rimadyl), deracoxib (e.g. Deramaxx), etodolac (e.g. Etogesic), firocoxib (e.g. Previcox), meloxicam (e.g. Metacam), robenacoxib (e.g. Onsior), and mavacoxib (e.g. Trocoxil).
Acetaminophen is generally safe for humans at the recommended dose. The metabolism (mechanism for breaking down and removing drugs from the body) of acetaminophen is different in dogs and cats than in humans. This means that relatively small doses, even a small piece of a pill, may be toxic for dogs or cats.
Dosing Information of Acetaminophen for Dogs

There are better alternatives for controlling fever and pain, so acetaminophen should not routinely be used in dogs. For dogs, 5 to 7.5 mg per pound (10 to 15 mg/kg), two to three times a day is recommended. If given for more than 5 days, two times a day is recommended.

Nonsteroidal anti-inflammatory drugs (NSAIDs), such as Ibuprofen or Aleve for humans, are one of the most common remedies your veterinarian may recommend for your dog`s discomfort. These medications can help your dog with pain, inflammation, stiffness, and any other joint issues.
Paracetamol is a very popular painkiller in humans, however it can be toxic or fatal in small animals. Dogs are less sensitive to paracetamol than cats. A 20kg dog would need to ingest over seven 500mg tablets in order to suffer toxic effects.
Should your vet prescribe paracetamol for your dog, it`s likely that it will be a dosage of 10mg per kilogram, and should only be given once a day for one or two days.
Nonsteroidal anti-inflammatory drugs (NSAIDs) are commonly used to control pain and inflammation in dogs. NSAIDs help many dogs lead more comfortable lives, but these drugs should be used carefully because they all can cause side effects, some of which can be serious.
Is acetaminophen toxic to cats? Acetaminophen, a common human drug used to control pain and fever, is toxic in cats. Unfortunately, this is relatively common toxicity, due to owners trying to treat their cat`s pain at home. Less commonly, cats may get into the owner`s medication.
For dogs, ibuprofen can easily exceed toxic levels. Ibuprofen has a narrow margin of safety in dogs. Signs of toxicosis can occur when as little as half a 200 mg pill is given to a 25 pound dog. The most common cause of ibuprofen toxicity is a well-meaning owner trying to alleviate pain in his dog.
While you can use human baby aspirin as recommended by your vet, aspirin made for dogs is typically a better option. Human aspirin has a coating on it that helps to protect the human stomach from irritation. Your dog cannot digest this coating, so the medication may not provide the desired effects.
Ibuprofen is toxic to dogs and you should never give it to your pup. Just three to six ibuprofen capsules can be deadly for dogs, so keep the medicine in a safe place. There are canine-specific pain relievers that you can get from your vet or try natural options.
While it may be tempting to give your pooch some paracetamol to save on vet fees, the truth is, it`s potentially dangerous and could end up costing you more in the long run.
Although relatively safe in humans, ibuprofen and other NSAIDs can be extremely harmful to dogs. Poisoning may happen when pets get into the owner`s medications.
If your pet has ingested paracetamol, contact your veterinarian immediately and take your pet to the veterinarian as soon as possible. Do not induce vomiting unless your vet instructs you to.
Paracetamol is a very popular painkiller in humans but it can be toxic or fatal in small animals. Dogs are less sensitive to paracetamol than cats. A 20 kilogram dog would need to ingest over seven 500mg tablets in order to suffer toxic effects.
The most commonly used non-steroidal anti-inflammatory medications (NSAIDS) for dogs are carprofen (Novox or Rimadyl), deracoxib (Deramaxx), meloxicam (Metacam ), deracoxib (Deramaxx), firocoxib (Previcox). Some vets will okay the use of aspirin for your pup for a short term injury.
No over-the-counter NSAIDs for dogs and cats are FDA-approved. Any NSAID marketed for dogs or cats online or in a pet store without the need for a prescription from a veterinarian is an unapproved animal drug, meaning FDA has not reviewed information about the drug.
Research shows diclofenac is the strongest and most effective non-steroidal anti-inflammatory medicine available.10 Diclofenec is sold under the prescription brand names Cambia, Cataflam, Zipsor, and Zorvolex. It is also available as a topical gel, Voltaren, which is available over the counter.
Your vet may prescribe the pill robenacoxib, which is also available as an injection. Meloxicam is another NSAID that`s injected, usually after surgery. It can also be administered orally in a liquid form. Your vet might also suggest aspirin, but in small doses and infrequently.
If you are worried that your dog ate ibuprofen, you should take them to a veterinarian immediately. Ibuprofen toxicity in dogs can cause serious damage to the kidneys, so time is of the essence if you think your dog has gotten ahold of the medication.
If your dog eats ibuprofen, you want to seek veterinary attention immediately. Not 3-4 hours after your dog ingests Advil. Not after you`ve tried to induce vomiting several times and are waiting at home for hours to get him (or her) to vomit. Get to the vet now.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

Q. Bruised ribs needs pain meds
Is Tylenol ok
ANSWER : A. Tylenol (acetaminophen – the active ingredient in the United States) has been shown to be TOXIC when given to dogs and cats and should never be used as a pain reliever for your pets. Please do not give this medication to your dog. If your dog is in pain please seek the advice of your veterinarian and ask for pet friendly pain medication.

Q. Shiba Inu. He periodically shakes and trembles, usually unrpovoked and seeming for no reason. Usually cuddling helps but not always. Becomes reclusive
ANSWER : A. I do find that Shiba Inu’s are a really sensitive breed. I think the first thing to rule out is pain. That could be pain from a muscle injury or even gastrointestinal pain. Try to pinpoint whether it occurs after a meal or not. He might be painful due to something going on in his GI tract, and the pain is at its worse after he eats.

I’ve also seen a lot of small breeds like Shibas get back pain, and shaking can definitely accompany that as well. If you haven’t see your vet who can perform a good physical exam and look for any signs of muscular pain along the spine or elsewhere. It’s not a bad idea at this point to consider doing some blood work just to screen for any problems that could be affecting organ function, for example.

If he’s healthy otherwise, I think it’s likely that there’s something that’s scaring him at home. These things can be really difficult to identify, and you have to be really aware and note exactly when the shaking occurs, how long it lasts, etc, and look for patterns. Dogs can hear things we can’t, and he may be hearing things you’re missing, and the noise is disturbing to him. Cuddling is a good idea, also working to distract him and desensitize him with toys and treats might help. But like I said above – definitely rule out pain first.

Q. Can you give a dog a Tylenol 3?
ANSWER : A. Do not give your dog any pain medications such as Tylenol or Advil unless specifically instructed by your vet. These medications can be very harmful to dogs and can cause ulceration of the stomach as well as organ failure if given too often or in the wrong dosage. If your dog is experiencing pain, your vet can recommend a safer dog-friendly medication to help ease pain. If you are in an emergency situation where your dog needs pain relief fast, it is best to contact your vet or an emergency clinic in your area for further help.

Q. Bruised ribs needs pain meds
Is Tylenol ok
ANSWER : A. No it has a very narrow toxic range. You need to use appropriate animal pain relief from your vet.

Q. My kitten has a very bloated stomach. Do I need to see a vet or do I buy a dewormer? we just found this kitten on the side of the road.
ANSWER : A. If it is a stray then you need to see your vet as soon as possible for a full examination. Yes you need a wormer but you need a good quality one from your vet, the over the counter ones are not as effective. You also need to treat for fleas and get vaccines. Your vet will be able to do all this and check that there aren’t any other medical problems that need attention.

Q. My female dog has tumors on breast and has an acl tore took her to the vet but has made no improvents n doesnt want eat or still dosnt want to walk
ANSWER : A. Mammary tumors should be surgically removed. An ACL tear is usually also a surgical repair. If you have opted to not have the surgeries, then palliative care is the choice, ie NSAIDs against inflammation and pain, and pain medication. Sometimes these pain medications or pain alone can cause the dog not to eat. You need to check back with your veterinarian and discuss pain medication for your dog.

Read Full Q/A … :

Q. Possible back disc issues with my dog. Working with vet through meds, I am giving my dog Tylenol 80 mg. twice daily. Is it ok to give more than twice?
ANSWER : A. It’s really strange that your vet is advising you to give Tylenol , as it can be toxic to dogs and has very little pain relief effect. If your dog has got disc issues he will need see a neurologist to check him over ASAP. With regards to your question, I would not recommend giving paracetamol at all.. But there are more effective pain relief options. It is also important that urination is monitored and helped, we often have to use catheters to do so.

Q. I have an 11 yr old dog with diabetes and is now blind. What can I give her for pain though she shows no sign of discomfort. Vet recommends pain pills
ANSWER : A. Diabetes is not considered to be a painful condition. If your dog doesn’t show any signs of pain he will not necessarily need pain medications.

Read Full Q/A … : Leerburg