[Glp5,(Me)Phe8,Sar9] Substance P (5-11) (DiMe-C7) is a Substance P analogue that has approximately the same effects as Substance P on neurokinin 1 receptor (NK1R) in rat brain, but with a much longer duration of action. [Glp5,(Me)Phe8,Sar9] Substance P (5-11) selectively activates dopamine metabolism in the mesencephalon and midbrain cortex of the rat brain. [Glp5,(Me)Phe8,Sar9] Substance P (5-11) also increases motor activity and induces recovery of addictive agent-seeking behavior in rats.

8-O-Acetylharpagide has a biological activity on isolated smooth muscle preparations from guinea pig.

Zingiberenoside B