. 2020 Aug 23;12(9):2545. doi: 10.3390/nu12092545

Table 4.

IC₅₀ values of Harpagophytum procumbens root extract (HPE) dissolved in DMSO (HPE_DMSO), 100% v/v EtOH (HPE_EtOH100), 50% v/v EtOH (HPE_EtOH50), and deionized water (HPE_H2O) and the positive control JZL 195 in the FAAH inhibition assay.

Harpagophytum procumbens Root Extract	IC₅₀ (CL) μg/mL
HPE_DMSO	94.7 (23.8–97.5)
HPE_EtOH100	65.5 (19.2–87.9) *
HPE_EtOH50	73.8 (24.5–94.3)
HPE_H2O	-
JZL 195	0.03 (0.01–0.06) *

Not evaluable being lower than 80% inhibition achieved. * p < 0.05 significantly lower than HPE_DMSO (ANOVA followed by Bonferroni’s multiple comparison post hoc test).