Get

In Your Inbox

Dogster is reader-supported. When you buy via links on our site, we may earn an affiliate commission at no cost to you. Learn more.

Previcox For Dogs: Our Vet Explains the Uses & Side Effects

White pills spilling out of pill bottle on white

Previcox is a medication made for dogs that is a non-steroidal anti-inflammatory drug (NSAID). As a class, NSAIDs are often used to decrease pain and inflammation, and Previcox is specifically marketed for that use in certain circumstances. Because it is a prescription-only medication, your veterinarian will determine when it may be indicated for your dog.

In this article, we will learn more about this medication, including its potential uses and some possible side effects.

Dogster divider_v2_NEW_MAY_24_

What Is Previcox?

The brand name medication Previcox contains the active ingredient firocoxib. Firocoxib is used as an oral chewable tablet for dogs (Previcox) and is also available for horses in an equine form (Equioxx). Recently, in the United States, the Food and Drug Administration approved the first generic form of firocoxib, called Firox.

As previously mentioned, Previcox is a type of NSAID. More specifically, within this class, it is labeled and subcategorized as a COX-2 inhibitor. Normally, within the body, the COX-2 pathway results in a cascade of events that results in pain and inflammation. By inhibiting this pathway response, this medication aims to provide relief from the activation of pain and inflammation.

Previcox is labeled to be given in a few cases. One is to control pain and inflammation seen in dogs with osteoarthritis. The second is to control pain and inflammation after surgeries that deal with the soft tissue (internal organs) or orthopedics (musculoskeletal system). Previcox can also be given up to 2 hours before said surgery so that control of pain and inflammation is already on board.

In addition, a veterinarian may use this medication extra-label or off-label (meaning it is used differently than its originally intended and approved purpose) such as to decrease fever or alleviate inflammation from other causes or medical diseases.

One important consideration regarding Previcox is that a dog must be at least 7 months old to be given the medication. Additionally, because of how the product is made and scored specifically, a dog that weighs less than 12.5 pounds (5.7 kg) can’t accurately be dosed with this medication. Keep in mind that this drug has not been evaluated in pregnant or lactating dogs.

veterinarian checking up on dogue de bordeaux dog
Image By: maxbelchenko, Shutterstock

How Is Previcox Given?

Previcox is a flavored chewable tablet given once daily. Keep in mind that any generic medication may differ and always follow the instructions given by your veterinarian. The specific Previcox dose will be determined by your dog’s doctor and the amount is based on your dog’s overall weight.

This medication should not be given with other NSAIDs or corticosteroids. While some NSAIDs are recommended to be given with food, Previxoc markets that it can be given with or without food.

What Happens If You Miss a Dose?

If you miss a dose, you have two options depending on how long it has been since the missed dose. One option is to give the pill as soon as you remember, and then the subsequent doses would be given at the original recommended intervals from this new start time.

Alternatively, if so much time has passed that it is closer to the next regularly scheduled dose, you may opt to wait until that dose is due and give it normally as the instructions recommend. Even if a dose was missed, do not ever double the dose, or give more than the original prescribed amount in a single setting.

White aspirin pills on blue table
Image By: Irin Fierce, Shutterstock

Potential Side Effects of Previcox?

NSAIDS are more known to affect the gastrointestinal, liver, and kidney systems within the body.

Some side effects to look out for in dog-approved NSAID medications, including Previcox, include:
  • Vomiting
  • Diarrhea
  • Black, tar-like stool
  • Decreased appetite
  • Lethargy
  • Increased water consumption
  • Increased urination
  • Seizure
  • Incoordination
  • Pale, whitish colored gums
  • Yellowing of the skin or whites of eyes (jaundice)
  • Fever
  • Bruising

If any negative signs are noted, the medication should be put on pause while contacting your dog’s veterinarian right away. In addition, if a dog has a hypersensitivity to the main ingredient, firocoxib, they should not be given Previcox to avoid an allergic reaction.

Did you know you can talk to a vet online? Click on the image or button below to schedule a call: PangoVet_Mention-in-Content Savings V1


Dogster divider_v3_NEW_MAY_24_

Frequently Asked Questions (FAQ)

Why is this medication prescription only?

Previcox (as well as other NSAIDs) is a medication where a veterinarian’s education and experience are needed to determine if this medication is best to be used for treatment. In addition, because these medications can have serious side effects, these should be discussed and monitored.

Your veterinarian will perform a complete history and physical exam prior to a dog beginning the medication. It may also be recommended to conduct bloodwork prior to starting the medication and to continue laboratory monitoring thereafter on a long-term basis.

What flavor is the chewable tablet?

It is barbecue flavored; the manufacturer advertises this as highly palatable to dogs.

woman training her papillon dog in the garden
Image Credit: Sand Diana, Shutterstock

This medication is marketed to treat osteoarthritis. What is this?

Osteoarthritis is a non-infectious degenerative disease that affects the joints by causing deterioration of the joint cartilage while also forming new bone. Unfortunately, once it evolves, it will continue to get worse over time. In the end, this results in stiffness, pain, and having joints that do not operate normally. It can affect about 25% of dogs and is the most frequent form of arthritis seen in our canine companions.

It can occur primarily (originating and occurring on its own) in older dogs, but can also be seen secondarily (originating as a result of another condition) in other orthopedic diseases including hip dysplasia, cruciate ligament disease, patellar dislocation, elbow dysplasia, etc.

Dogster divider_v2_NEW_MAY_24_

Conclusion

Previcox is a non-steroidal anti-inflammatory medication that is available via prescription and can be used to help alleviate pain and inflammation in dogs. While it can have side effects to be monitored for, it is a commonly used medication that can, in many instances, help provide comfort for our canine companions.


Featured Image Credit: Tetiana Radachynska, Shutterstock

Want content like this delivered to you?

Sign Up For Our Newsletter

News, insights, expert advice, and everything dog

* By submitting, you agree to our Terms & Conditions and Privacy & Cookies Policy.

How useful was this post?

Click on a star to rate (you can leave written feedback after clicking submit)

Help us improve Dogster for pet parents!

Your feedback really matters.

What did you like about this post? Also how can we improve it?

Join the conversation

2 Responses

  1. My dog started Ficoxil 227 mg and after the first 5 pills he's gotten a sore between his back feet toes that he leaks unstoppably and now there's a wound. Could It be an allergic reaction to the medicine coz he never had this issue before among his toes.
    Any advice would be much appreciated!
    Kind regards
    Eλενη.

    1. Hello there,

      Thank you for your question. Although dogs usually react well to this medicine, some adverse reactions are always possible, so this is something that should be brought to the attention of the prescribing vet. If you would like to discuss this with a different veterinarian, you are welcome to book an appointment with one of our veterinarians from our PangoVet.com telehealth service. Just head to https://www.pangovet.com.

      Best of luck!

Leave a Reply

You’re very welcome to leave a comment or question. Please know that all comments must meet our community guidelines, and your email address will NOT be published. Let’s have a positive and constructive conversation.

Talk With A Vet Online

Peace of mind,
anywhere, anytime

Affordable vet advice

Do Vizslas Shed a Lot? Factors, Patterns & Coat Guide

Vizslas have short and sleek coats with hues that range from golden rust to copper. They are energetic, loyal, and often a great...

Bullweiler (English Bulldog & Rottweiler Mix): Info, Pictures & Care Guide

If you stumbled across this unfamiliar breed and fell in love immediately, you might be searching to find out more about these unique...

10 Beautiful Types of Husky Breeds (With Info & Pictures)

The Husky is a popular dog that was bred in the far North to make a superb sled-pulling dog. The term was given...

Do Father Dogs Recognize Their Own Puppies? Facts & FAQ

Mother dogs nurture their young and recognize their puppies. They will reject litters they did not give birth to while carefully nursing and...

More related

7 Great Off-Leash Dog Parks in Huntington Beach, CA You Can Visit Today (2025 Update)

Huntington Beach is a famous Californian city southeast of Los Angeles. It is loved for its 8.5-mile stretch of beach and beautiful climate,...

When Do I Spay or Neuter My Bernese Mountain Dog? Vet-Reviewed Facts

Determining when to spay or neuter your dog can be a challenge, and the timing isn’t the same for all breeds. Small breeds...

Samoyed vs Pomeranian: Notable Differences & Similarities

Samoyeds and Pomeranians are both breathtakingly gorgeous dogs with thick coats. While some people confuse these two breeds, they have many fundamental differences....

Cavapoo (Cavalier King Charles Spaniel & Poodle Mix): Info, Pictures & Care

The Cavapoo is a loving dog that’s perhaps best suited as a companion animal or family pet. This mix combines the sweet nature...

Keep reading

When to Switch a Great Dane From Puppy to Adult Food? Vet Approved Guide

Dogs are similar to children in that one moment, they’re a puppy, then you blink, and they’re all grown up. And like children, dogs will have different nutritional needs to be met as they get older. That means it’s smart...

Two great danes on the sofa

11 Best Dog Foods for Dental Issues in 2025 – Reviews & Top Picks

Dogs are prone to dental problems just like humans. In fact, according to the American Veterinary Dental Society, 80% of dogs will have some form of dental disease by the time they are 3 years old.1 This can lead to...

Dog teeth zoomed in_Andriyko Podilnyk_Unsplash

PetPlate Dog Food Review 2025: Recalls, Pros & Cons

Review Summary PetPlate hasn’t been around for all that long, but in the few years they have been producing fresh food for dogs, they’ve made a big difference and have created millions of meals that are loved by pups across...

Dogster_PetPlate Dog Food Review

Can Dogs Eat Cupcakes? Vet-Approved Facts & FAQ

People love to eat all kinds of sweets, including cupcakes. Most dogs are also tempted by sweets, so if you have a furry companion, you may wonder if they can eat cupcakes. In general, dogs can technically eat cupcakes just...

Can Dogs Eat Cupcakes

Can Dogs Drink Tea? Vet-Approved Nutrition Facts & FAQ

Sometimes, it’s nice giving your canine companion a treat you know they’ll love, and occasionally, those treats are something you would eat or drink too. Take tea, for example. Plenty of people enjoy tea because of its various flavors and...

Dogster-Can-Dogs-Drink-Tea

Meridian Dog Food Review 2025: Pros, Cons, Recalls, and FAQ

Review Summary Meridian is a holistic pet food company that is made by Midwestern Pet Foods under the parent company Nunn Milling Co. Meridian makes four different dog food recipes with an aim at high quality, natural nutrition. We all...

Dogster_Meridian Dog Food Review

Can Dogs Eat Miso Soup? Vet-Verified Nutrition Facts & Risks

Dogs are more than just pets. Roughly 95% of owners consider their canine companions as members of their families, so it only makes sense that you’d want to share some of your food with your pup. Of course, some foods...

Can Dogs Eat Miso Soup

What To Add to Dog Food for Dry Skin: 9 Great Ideas

As dog owners, we understand the frustration of a pet that scratches and licks excessively, but it is much more agonizing for the dog. If you checked for fleas and there are none, your canine friend likely has dry, itchy...

woman feeding dalmatian dog