Interphotoreceptor retinoid-binding protein(668-687) TFA is the 668-687 amino acid residue of human Interphotoreceptor retinoid binding protein(IRBP), which can induce uveitis.

This is amino acids 86 to 100 fragment of class II-associated invariant chain peptide called CLIP. The major histocompatibility complex class II molecule displays peptide fragments of foreign proteins to trigger a defensive reaction from the immune system. Before insertion of the foreign peptides into the binding groove, a place-holding peptide CLIP is removed. This is accomplished by the molecule DM, which is shown to increase the dissociation rate of a CLIP peptide from class II.

Cholestyramine, a bile acid-binding resin, inhibits intestinal bile acid absorption which results in the increasing bile acid synthesis from cholesterol.