<unk>  (Stakane) is a phenylpiperazine derivative drug invented in 1979. It acts as an analgesic and anti-inflammatory drug with similar efficacy to naproxen, but is not widely used as it has largely been replaced by newer drugs.
Antrafenine
Tocofersolan
Carctol
Tiratricol
Dextromoramide
Roxadustat
Seratrodast
Dicycloverine