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PF4840154 是有效的大鼠和人TrpA1通道选择性激动剂，EC50分别为 97 和 23 nM。PF-4840154 可以诱导 TrpA1 介导的小鼠伤害行为。

Psychotridine is an alkaloid that has been found inP. forsterianaand has diverse biological activities.1,2,3It inhibits ADP-, collagen-, or thrombin-induced aggregation of washed isolated human platelets with IC50values of 1.4, 1.4, and 3.9 μM, respectively.1Psychotridine (2.5 or 5 μM) is cytotoxic to HTC rat hepatocellular carcinoma cells.2It reduces paw licking induced by capsaicin in mice when administered at doses of 0.5, 2.5, or 5 mg kg.3 1.Beretz, A., Roth-Georger, A., Corre, G., et al.Polyindolinic alkaloids from Psychotria forsteriana. Potent inhibitors of the aggregation of human plateletsPlanta Med.51(4)300-303(1985) 2.Roth, A., Kuballa, B., Bounthanh, C., et al.Cytotoxic activity of polyindoline alkaloids of Psychotria forsteriana (Rubiaceae) (1)Planta Med.6450-453(1986) 3.Amador, T.A., Verotta, L., Nunes, D.S., et al.Involvement of NMDA receptors in the analgesic properties of psychotridinePhytomedicine8(3)202-206(2001)

Galanin (Human) (Acetate)是一种含有30个氨基酸的神经肽和丙氨酸(GAL)受体激动剂。在表达重组人gal1受体的HEK293E 细胞(EC50= 0.031 nM)中，它抑制佛司可林诱导的cAMP 产生，并刺激表达重组人gal2受体的CHO 细胞(EC50= 12.3 nM)中肌醇磷酸的积累。Galanin (Human) (Acetate)诱导离体大鼠纵向眼底收缩，ec50值为13.8 nM。在大鼠福尔马林试验的第二阶段，鞘内给药人甘丙肽(3、10和30 nmol/只)可减少大鼠舔爪和退缩。

Hodgkinsine is a pyrrolidinoindoline alkaloid that has been found inP. colorataand has analgesic activity.1It increases latency to paw licking in the hot plate test and latency to tail withdrawal in the tail-flick test in mice when administered at a dose of 5 mg kg. 1.Amador, T.A., Verotta, L., Nunes, D.S., et al.Antinociceptive profile of hodgkinsinePlanta Med.66(8)770-772(2000)

7-Methoxyflavone 是一种分离自 Zornia brasiliensis 的化合物。它能够抑制福尔马林疼痛反应神经源期的舔爪时间 (65.6%)，有外周镇痛活性，但不影响炎症期的伤害性反映。