Wiktionary
clofezone
n. A combination of clofexamide and phenylbutazone, formerly used to treat joint and muscular pain.
Wikipedia
Clofezone
Clofezone (trade name Perclusone) is a drug that was used to treat joint and muscular pain, but is not marketed any more. It is a combination of clofexamide, an antidepressant, and phenylbutazone, a non-steroidal anti-inflammatory drug (NSAID).