What is Phenylbutazone?
Phenylbutazone is used to relieve pain and inflammation of muscles and joints in horses. This prescription drug gives horses relief from muscle and joint soreness without the use of steroids.
Who is it for?
Phenylbutazone is for horses.
What are the benefits?
||Prescription non-steroidal anti-inflammatory drug (NSAID) for horses
||Anti-inflammatory drug gives horses relief from muscle and joint soreness
||Phenylbutazone in convenient tablet form is easy to administer
Combat pain and muscle and joint inflammation in horses with Phenylbutazone tablets. This NSAID (non-steroidal anti-inflammatory drug) is also effective in reducing fever. Phenylbutazone tablets goes to work on inflamed tissues and is effective in treating disorders of the musculoskeletal system, such as muscle strain and sprains, tendon damage, acute injuries of the joints, as well as arthritis. Available in one gram or 100mg tablets.
How does Phenylbutazone work?
Phenylbutazone combats pain and muscle/joint inflammation in horses by means of its anti-inflammatory properties. It blocks the body's production of substances that trigger inflammation.
Is there a generic equivalent available?
This is a generic.
How is it given?
Phenylbutazone tablets are given by mouth with food. Always follow the dosage instructions provided by your veterinarian. If you have difficulty giving the medication, contact your veterinarian. This medication should only be given to the horse for whom it was prescribed.
What results can I expect?
Phenylbutazone does not cure a disease but can effectively reduce symptoms of pain and inflammation. The response varies from horse to horse but can be dramatic. Pain relieving effects can generally be seen within hours of giving Phenylbutazone. Improvement of inflammation can generally be seen after several days. Phenylbutazone is not a cure for arthritis, and the signs may come back if Phenylbutazone is discontinued.
What form(s) does it come in?
Common Drug Name
What should I discuss with my veterinarian while considering Phenylbutazone?
Talk to your veterinarian about what tests and exams may be necessary while your horse is taking Phenylbutazone. Also discuss how long the treatment period will be and what type of outcome is expected. You and your veterinarian should talk about any other treatment options that are recommended for your horse. For arthritic horses, weight loss programs, exercise programs, supplements, and other aids may be helpful.
Tell your veterinarian if your horse has liver or kidney disease, stomach ulcers, has a bleeding disorder, may be pregnant or is nursing, or if you intend to breed your horse.
Discuss withdrawal times if your horse is a performance horse.
Notify your veterinarian of any other medications or supplements your horse is taking, and also if your horse has had any reactions to previous medications.
What should I do if I miss a dose?
If you miss a dose, give it as soon as you remember. If it is almost time for the next dose, skip the one you missed and go back to the regular schedule. Do not give two doses at once.
What is the most important information I should know?
At the first sign of
side effects, contact your veterinarian.
Who should not take it?
Not for use in horses hypersensitive (allergic) to Phenylbutazone. Do not use in horses with stomach ulcers or a history of stomach ulcers, horses that are anemic, or have diseases of the bone marrow, kidney, liver, or heart. Do not use in pregnant or lactating horses unless benefits outweigh the risks. Avoid use in debilitated horses, foals, and ponies unless benefits outweigh the risks, since the possibility of toxic side effects is increased in these animals.
Since Phenylbutazone can mask lameness, it is unethical to use it prior to a soundness exam.
Do not use in horses intended for food.
This medication should only be given to the horse for which it was prescribed.
What side effects may be seen when taking Phenylbutazone?
You may see signs of oral or gastric ulcers. In adult horses, these signs may include decreased appetite, weight loss, mild colic, poor performance, depression, lying down more than normal, diarrhea, accumulation of fluid under the belly, and anemia with signs of pale gums and weakness. In foals, you may also see teeth grinding, drooling, weakness, and nursing for only short periods of time. Effects related to the kidney may result in changes in drinking or urination habits. Stop using Phenylbutazone and consult your veterinarian if you notice any of the above side effects.
If your horse experiences an allergic reaction to the medication, signs may include facial swelling, hives, scratching, sudden onset of diarrhea, shock, seizures, pale gums, cold limbs, or coma. If you observe any of these signs, contact your veterinarian immediately.
How is it stored?
Store in a tight, light-resistant, childproof container at room temperature. Keep out of reach of children and pets.
What should I do if I know of or suspect there has been an overdose?
If an overdose should occur, you may see changes in drinking and urinating including blood in the urine; increased breathing rate, weakness, or seizures; liver injury, with yellowing of the gums and whites of the eyes; anemia, with pale gums; or ulcers in the mouth or stomach, with signs of pain, loss of appetite and weight loss. If you know or suspect your horse has had an overdose, or if you observe any of these signs in your horse, contact your veterinarian immediately.
What should I avoid when giving my pet Phenylbutazone?
Notify your veterinarian of any other medications, including vitamins and supplements, your horse is taking while receiving Phenylbutazone. Consult your veterinarian before using this medication with phenytoin, valproic acid, oral anticoagulants such as warfarin, corticosteroids, chlorpheniramine, diphenhydramine, penicillin G, furosemide (Salix), and other NSAIDS such as aspirin and flunixin (Banamine), since interactions may occur.
Where is more information available?
Ask your veterinarian, consult with one of our pharmacists at 1-800-447-3021, or see the
Patient Information Sheet on this medication.