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.

Methyl nomilinate from citrus can modulate cell cycle regulators to induce cytotoxicity in human colon cancer (SW480) cells in vitro.

Sodium cromoglicate is a mast cell stabilizer with anti-inflammatory activity that prevents the release of inflammatory chemicals such as histamine, leukotrienes from mast cells.