Anthirine is an alkaloid that has been found in S. angustiflora and has analgesic activity.1 It increases the latency to paw licking in a hot plate test in mice when administered at a dose of 20 mg/kg.
1.Jiang, H., Liu, Y.-B., Li, Y., et al.Analgesic corynanthe-type alkaloids from Strychnos angustifloraTetrahedron72(10)1276-1284(2016)
















