Felbinac (INN, or biphenylylacetic acid) is a topical medicine,[1] belonging to the family of medicines known as nonsteroidal anti-inflammatory drugs (NSAIDs) of the arylacetic acid (not arylpropionic acid) class, which is used to treat muscle inflammation and arthritis.[2] It is an active metabolite of fenbufen.[3]
Related compounds
The α-methyl acid of felbinac is called biprofen and is used to prepare bifepramide. The α-ethyl acid is called xenbucin which is used to make xenthiorate.
^Kohler C, Tolman E, Wooding W, Ellenbogen L (1980). "A review of the effects of fenbufen and a metabolite, biphenylacetic acid, on platelet biochemistry and function". Arzneimittelforschung. 30 (4A): 702–707. PMID6254545.