Salcaprozate sodium is an oral absorption promoter, and has the potential as a delivery agent for oral forms of heparin and insulin.

Dynorphin A (1-8) is the predominant opioid peptide identified in placental tissue extracts. Dynorphin A (1-8) is the most likely natural ligand of the kappa receptor. The binding of 3H-Bremazocine to the purified kappa receptor is inhibited by Dynorphin A (1-8) (IC50=303 nM).

Ingenol mebutate is a potent activator of PKC subtypes including PKC-α, PKC-β, PKC-γ, PKC-δ, and PKC-ε with Kis of 0.3, 0.105, 0.162, 0.376, and 0.171 nM.