Phenylbute Injection

Phenylbute® Injectable Solution

Phenylbute® Injectable Solution is a synthetic non-steroidal anti-inflammatory medication used for lowering fever, pain management and to reduce inflammation. 

Horses

Phenylbutazone

Phenylbute® Injectable, Bute® Injectable

Non-Steroidal Anti-inflammatory Drug (NSAID)

Phoenix Pharmaceuticals, Inc

Phenylbute® 200 mg/ml Injection 100 ml: injectable solution. (NDC 57319-0508-05)

Phenylbutazone

Phenylbute® Injection should be given to your horse as directed by your veterinarian. Use aseptic techniques when withdrawing each dose to decrease the possibility of post-injection bacterial infections. Adequately clean and disinfect the stopper prior to entry with a sterile needle and syringe.

Injectable medications require needles and syringes. Those items are purchased separately.  Please ask your veterinarian for a recommendation for the correct needle/syringe sizes for your pet. Use only sterile needles/syringes and use each needle/syringe only once. Dispose the needle/syringe immediately in a proper sharps disposal container. Sharps containers are sold separately.

Give the dose as soon as possible. If it is almost time for the next dose, skip the missed dose, and continue with the regular schedule. Do not give 2 doses at once.

Side effects may include upset stomach, which may lead to diarrhea; other side effects include possible fluid retention, stomach ulceration, and lesions or ulcers in the mouth. Contact your veterinarian if these symptoms appear to be troublesome for your horse. Contact your veterinarian if the following symptoms are noted: changes in appetite, changes in drinking habits and urination frequency, seizures, coma, hyperventilation, persistent nausea and/or diarrhea, severe hypotension, depression, and weakness.

Other side effects may occur. If you notice anything unusual, contact your veterinarian.

The following drugs can potentially interact with phenylbutazone: furosemide, corticosteroids, nsaids, penicillin G, penicillamine, oral anticoagulants, sulfonamides, sulfonylurea and anti-diabetic agents. Contact your veterinarian if your horse experiences any unusual reactions when different medications are given together.

Make sure to tell your veterinarian what other medication you are giving to your horse. Quite often your veterinarian may prescribe two different medications, and a drug interaction may be anticipated. In this case, your veterinarian may vary the dose and/or monitor your horse more closely. 

Allergic reactions to medications may occur. Be sure to inform Vetsource and your veterinarian if your horse has any known drug sensitivities or allergies. If your horse displays symptoms of an allergic reaction, call your veterinarian immediately or go to a veterinary emergency clinic. Symptoms may include but are not limited to: swollen lips, tongue, face, airways; difficulty breathing; agitation; profuse salivation; widespread hives and itching.

If you are concerned that your pet has experienced an adverse reaction to this medication, please contact Vetsource customer service at 877-738-4443.

Store at 36°F to 46°F in the refrigerator. Keep this medicine out of reach of children. Store in a childproof container. Store away from heat and direct sunlight. Do not store this medicine in the bathroom, near the kitchen sink or in damp places. The medicine may break down if exposed to heat or moisture.