[Leu144,Arg147]-PLP (139-151) is a mutant peptide fragment of myelin proteolipid protein (PLP), with the tryptophan and histidine at positions 144 and 147 respectively replaced by leucine and arginine. [Leu144,Arg147]-PLP (139-151) also serves as a T cell receptor (TCR) antagonist for encephalitogenic Th1 clones, blocking their activation in vitro. Furthermore, [Leu144,Arg147]-PLP (139-151) can inhibit the development of experimental autoimmune encephalomyelitis (EAE).

2-Hydroxy-3-methoxybenzoic acid glucose ester shows a potent antagonistic activity against platelet activating factor (PAF), it can prevent the mice from the PAF-induced death at a dose of 300 micrograms/mouse.

Tetrahydrozoline HCl is an imidazoline derivative with alpha receptor agonist activity.