Phenylbutazone is a very powerful anti-inflammatory drug. It is no longer sold in the United States for human use. It is only sold for animal use, usually horses and dogs. Phenylbutazone overdose occurs when someone takes too much of this drug.

This is for information only and not for use in the treatment or management of an actual poison exposure. If you have an exposure, you should call your local emergency number (such as 911) or the National Poison Control Center at 1-800-222-1222.

Phenylbutazone

• Butazolidin
• Azolid

Note: This list may not be all-inclusive.

• Eyes, ears, nose, and throat
  • Blurred vision
  • Ringing in the ears
  • Sensitivity to light
• Gastrointestinal
  • Diarrhea
  • Nausea and vomiting
  • Possible loss of blood from the stomach and intestines
  • Stomach or abdominal pain
• Heart
  • Low blood pressure
• Lungs
  • Labored breathing
  • Slow or rapid breathing
• Nervous system
  • Agitation
  • Coma
  • Confusion
  • Convulsions
  • Drowsiness
  • Headache (severe)
  • Incoherence (not understandable)
  • Movement disorder
  • Unsteadiness
• Skin
  • Rash