Feprazone (or prenazone) is a drug used for joint and muscular pain.[1]

It is an analog of phenylbutazone but instead of a n-butyl group it is prenylated.

References

  1. ^ Koyama T, Izawa Y, Wada H, Makita T, Hashimoto Y, Enomoto M (June 1982). "Toxicological aspects of feprazone, a new nonsteroidal anti-inflammatory drug". Toxicology and Applied Pharmacology. 64 (2): 255–70. doi:10.1016/0041-008X(82)90222-8. PMID 7123554.