Previcox (Firocoxib) Chewable Tablets for Dogs, slide 1 of 1

Previcox (Firocoxib) Chewable Tablets for Dogs

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Strength: 227-mg
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Count: 1 tablet

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Previcox is a non-steroidal, anti-inflammatory drug (NSAID) prescribed by your vet to treat your canine companion's pain and inflammation caused by osteoarthritis. It can also help control postoperative pain and inflammation often associated with soft-tissue and orthopedic surgery. This medication comes in a chewable tablet form, which means it can be easily crushed up and disguised in your pet's favorite food.


Previcox (firocoxib) Chewable Tablets are indicated for the control of pain and inflammation associated with osteoarthritis and for the control of postoperative pain and inflammation associated with soft-tissue and orthopedic surgery in dogs.

Possible Side Effects

Adverse reactions can occur and may include vomiting, diarrhea, decreased appetite, dark or tarry stools, increased water consumption, increased urination, pale gums due to anemia, yellowing of gums, skin or white of the eye due to jaundice, lethargy, incoordination, seizure, or behavioral changes. Serious adverse reactions associated with this drug class can occur without warning. Pet parents should be advised Previcox therapy and contact their veterinarian immediately if signs of intolerance are observed.

Drug & Food Interactions

Firocoxib should not be taken with other nonsteroidal anti-inflammatory drug or corticosteroids.


This product cannot be accurately dosed in dogs less than 12.5 pounds in body weight. Consider appropriate washout times when switching from one NSAID to another or when switching from corticosteroid use to NSAID use. As a class, cyclooxygenase inhibitory NSAIDs may be associated with renal, gastrointestinal and hepatic toxicity. Sensitivity to drug-associated adverse events varies with the individual patient. Dogs that have experienced adverse reactions from one NSAID may experience adverse reactions from another NSAID. Patients at greatest risk for adverse events are those that are dehydrated, on concomitant diuretic therapy, or those with existing renal, cardiovascular, and/or hepatic dysfunction. Concurrent administration of potentially nephrotoxic drugs should be carefully approached and monitored. NSAIDs may inhibit the prostaglandins that maintain normal homeostatic function. Such anti-prostaglandin effects may result in clinically significant disease in patients with underlying or pre-existing disease that has not been previously diagnosed. Since NSAIDs possess the potential to produce gastrointestinal ulceration and/or gastrointestinal perforation, concomitant use of Previcox Chewable Tablets with other anti-inflammatory drugs, such as NSAIDs or corticosteroids, should be avoided. The concomitant use of protein-bound drugs with Previcox Chewable Tablets has not been studied in dogs. Commonly used protein-bound drugs include cardiac, anticonvulsant, and behavioral medications. The influence of concomitant drugs that may inhibit the metabolism of Previcox Chewable Tablets has not been evaluated. Drug compatibility should be monitored in patients requiring adjunctive therapy. If additional pain medication is needed after the daily dose of Previcox, a non-NSAID class of analgesic may be necessary. Appropriate monitoring procedures should be employed during all surgical procedures. Anesthetic drugs may affect renal perfusion, approach concomitant use of anesthetics and NSAIDs cautiously. The use of parenteral fluids during surgery should be considered to decrease potential renal complications when using NSAIDs perioperatively. The safe use of Previcox Chewable Tablets in pregnant, lactating or breeding dogs has not been evaluated.

  1. Prescribing Information

See all items by Previcox

  • Item Number
  • Common Brand Name(s)
    Previcox, Equioxx
  • Generic Name
  • For Use With
  • Administration Form
  • Brand
    Merial, Boehringer Ingelheim
  • Product Form
    Chewable Tablet
  • Health Condition
    Joint Pain/Arthritis, Pain, Recovery
  • Drug Type


Recommended Dosage

Carefully consider the potential benefits and risks of Previcox and other treatment options before deciding to use Previcox. Use the lowest effective dose for the shortest duration consistent with individual response. The recommended dosage of Previcox (firocoxib) for oral administration in dogs is 2.27 mg/lb (5.0mg/kg) body weight once daily as needed for osteoarthritis and for 3 days as needed for postoperative pain and inflammation associated with soft-tissue and orthopedic surgery. The dogs can be treated with Previcox approximately two hours prior to surgery. The tablets are scored and dosage should be calculated in half tablet increments. Previcox Chewable Tablets can be administered with or without food.

Storage Instructions

Store at room temperature between 59° - 86°F. Brief periods up to 104°F are permitted.


Can Previcox (Firocoxib) Be Given With Other Medications?

Previcox should not be given with other NSAIDs (for example, aspirin, carprofen, etodolac, deracoxib, meloxicam, or tepoxalin) or corticosteroids (for example, prednisone, cortisone, dexamethasone, or triamcinolone). Tell your veterinarian about all medications that you have given your dog in the past, and any medications that you are planning to give. This should include other medicines that you can get without a prescription or any dietary supplements. Your veterinarian may want to check that all of your dog’s medicines and supplements can be given together.

How Do I Give Previcox (Firocoxib) To My Dog?

Previcox should be given according to your veterinarian’s instructions. Do not change the way you give Previcox to your dog without first speaking with your veterinarian. Your veterinarian will tell you what amount of Previcox is right for your dog and for how long it should be given. Most dogs will take Previcox chewable tablets from your hand, but you can also place the tablet directly into your dog’s mouth. Previcox may be given with or without food.

Can Previcox (Firocoxib) Be Used For People Or Other Animals?

Previcox is designed specifically for dogs. As such, people should not take Previcox or administer it to any animal other than a dog as prescribed by your veterinarian. Keep Previcox and all medications out of the reach of children. Call your physician immediately if you or a member of your family accidentally ingests Previcox.

What Should I Do In Case My Dog Consumes More Than The Prescribed Amount Of Previcox (Firocoxib)?

Consult your veterinarian immediately if your dog consumes more than the prescribed amount of Previcox.

Are There Possible Side Effects That May Occur In My Dog During Treatment With Previcox (Firocoxib)?

Previcox, like other NSAIDs, may cause some side effects. Serious side effects associated with NSAID therapy in dogs can occur with or without warning. The most common side effects associated with Previcox therapy involve the digestive tract (vomiting and decreased food consumption). Liver and kidney problems have also been reported with the use of NSAIDs. Look for the following side effects that may indicate your dog is having a problem with Previcox or may have another medical problem in addition to arthritis.

  • Vomiting.
  • Change in bowel movements (such as diarrhea or black, tarry or bloody stools).
  • Change in behavior (such as decreased or increased activity level, lack of coordination, seizure, or aggression).
  • Yellowing of gums, skin, or whites of the eyes (jaundice).
  • Change in drinking habits (frequency or amount consumed).
  • Change in urination habits (frequency, color, or smell).
  • Change in skin (redness, scabs, or scratching).
  • Unexpected weight loss.

Listen to a veterinarian’s advice on potential side effects here.

It is important to stop treatment and contact your veterinarian immediately if you think your dog has a medical problem or side effect while taking Previcox tablets.

What Should I Tell Or Ask My Veterinarian Before Giving My Dog Previcox (Firocoxib)?

Talk with your veterinarian about:

  • The signs of canine arthritis you have observed in your dog, such as limping or stiffness. You can print our checklist of common signs and take it with you to help you talk with your veterinarian here.
  • The importance of weight control in the management of arthritis in dogs.
  • What tests might be done before Previcox is prescribed.
  • How often your dog may have to be examined by your veterinarian.
  • The risks and benefits of using Previcox.

Tell your veterinarian if your dog has ever had one or more of the following medical problems:

  • Any side effects from taking Previcox or other NSAIDs
  • Any digestive upset (vomiting and/or diarrhea)
  • Any kidney disease
  • Any liver disease

Tell your veterinarian about:

  • Any other medical problems or allergies that your dog has now, or has had in the past.
  • All medicines that you are giving or planning to give your dog, including those you can get without a prescription and any dietary supplements.

Which dogs should not take Previcox (firocoxib)?

Your dog should not be given Previcox if he/she:

  • Has had an allergic reaction to firocoxib, the active ingredient in Previcox.
  • Has had an allergic reaction (such as hives, facial swelling, or red or itchy skin) to aspirin or other NSAIDs.
  • Is presently taking aspirin, other NSAIDs, or corticosteroids.
  • Is under 12.5 pounds in body weight.
Rating: 4.8 of 5 stars 46 Reviews 46 Reviews 4.8 out of 5 Stars

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Rating: 4.8 of 5 stars 4.8 / 5

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46 Reviews

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  • 4 out of 5 stars


    By on

    The price is 1/2 of what the vet charges but why do you have to get a new script every month when my little dog needs these? The cat food is all my senior indoor cat will eat and hard to find so getting it on Chewy works out great.

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  • 5 out of 5 stars

    Recommend previcox

    By on

    My shepherd has hip dysplasia. Vet recommended trying this. The tablet is chewable and surprisingly Britta does chew it. Britta has seemed to improve her mobility and is happier. I give it to her once a day.

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  • 4 out of 5 stars

    We'll see...

    By on

    It's a better option for inflammation than Carprofen. It's more expensive but I don't have to give it to my dog every day, which can balance out the cost. Hope it works for my furbaby!

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  • 5 out of 5 stars

    Easy, no hassle

    By on

    As usual no hassle to get my dogs prescription for her pain. They work great along with my vet. Even with delays because of covid19. We were able to get what she needed fairly quickly. Thanks as always Chewey .

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  • 5 out of 5 stars

    Previcox 227

    By on

    My 8 yo rottie has been on both Previcox 227 and a rare tramadol (depending on how active his day has been) for a few years now for a torn ACL. This medication has allowed him to have increased range of motion and reduced stiffness in his joints. Although he’s stoic, I’m certain his pain level is dramatically lessened. He feels so good I have to keep a close watch on his activity level!! He’s back to his puppy zooms! Has worked above and beyond rimadyl. I highly recommend!!

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  • 5 out of 5 stars

    Anti Inflammatory

    By on

    We use this with my 13 yo Lab mix and he only has to take 1/4 of a pill to feel the benefits. He gets a little bounce in his step when he takes it everyday.

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  • 5 out of 5 stars

    on time, as ordered

    By on

    Nothing not to like! Chewy works very well with all the veterinarians I deal with. Happy with results especially on a time-sensitive product.

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  • 5 out of 5 stars

    Oesteoarthritis med for my dog

    By on

    I am new to the Chewy experience and I am very pleased with the customer service and the product shipping time was great and I loved that I could put in the vet info and chewy handled the prescription for the previcox

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  • 5 out of 5 stars


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    My St. Bernard is moving easier and with less discomfort. I am pleased with the results, but it is very expensive.

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  • 5 out of 5 stars

    A couple of times more expensive than Rimadyl (Carprofen), BUT - no diarrhea!

    By on

    Give it a try if Rimadyl (Carprofen) gives your pup loose stools. Keep in mind, 2-week break is a must between these two. Consult your vet!

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