Phenylbutazone is a medication that is commonly used to treat pain and inflammation. It belongs to the class of drugs known as nonsteroidal anti-inflammatory drugs (NSAIDs). However, due to the potential side effects associated with its use, there are various synonyms that can be used in place of phenylbutazone. Some of these include phenylbutazone sodium, butazolidin, bute, and phenyl butyrazolidone. Other synonyms include oxyphenbutazone, diphenylbutylpiperidine, and 4-Butyl-1, 2-diphenylpyrazolidine-3,5-dione. These alternative names can be useful for patients who have allergies to phenylbutazone or who are seeking alternative approaches for the management of pain and inflammation.