Alloferon 1 is an antiviral and antitumoral peptide. Alloferon 1 stimulates natural cytotoxicity of human peripheral blood lymphocytes. Alloferon 1 also induces IFN synthesis, and enhances antiviral and antitumor resistance in mice. Alloferon 1 also shows anti-inflammatory activity in λ-carrageenan-induced paw edema model. Alloferon 1 can be isolated from the blood of the blow fly Calliphora vicina (Diptera).

RGX-104 free Acid is an agonist of potent liver-X nuclear hormone receptor (LXR)?.

SPR741, formerly NAB741 (12), is a cationic peptide derived from polymyxin B and is one such potentiator molecule that is under development for the treatment of serious Gram-negative bacterial infections.