Senktide is shown to selectively interact with a tachykinin receptor subtype (SP-N) and can be used in studies to find out the regulation, distribution, and functional role of this receptor. This compound is also reported to be an NK-3R agonist and may cause behavior similar to serotonergic stimulation in murine models. NK-3R (tachykinin NK-3 receptors) have been noted to mediate bronchoconstriction in guinea pig lungs, and activation of these receptors by Senktide has also been shown to induce bronchoconstriction. Furthermore, this agent has demonstrated the ability to induce increased numbers of Fos-LI neurons in numerous regions of the guinea pig brain.