α-Spinasterol is a transient receptor potential vanilloid 1 (TRPV1) antagonist, has anti-inflammatory, antidepressant, antioxidant and antinociceptive effects. α-Spinasterol inhibits COX-1 andCOX-2 activities with IC50 values of 16.17 μM and 7.76 μM, respectively.

COX-2:7.76 μM (IC50), COX-1:16.17 μM (IC50)

Oral administration of α-spinasterol reduced postoperative pain, when given as a pre- (0.5 h before incision) or post-treatment (0.5 h after incision), and reduced cell infiltration in the injured tissue.?α-Spinasterol also reduced the mechanical allodynia induced by partial sciatic nerve ligation and the mechanical and cold allodynia induced by paclitaxel.?Moreover, α-spinasterol inhibited COX-1 and COX-2 enzyme activities without altering the body temperature of animals.?Importantly, α-spinasterol did not alter spontaneous or forced locomotor activity.?Furthermore, it did not cause gastric damage or liver and kidney changes, nor did it alter cell viability in the cerebral cortex and spinal cord slices of mice.