[2]. J R Menzies, et al. Opioid Activity of Alkaloids Extracted From Picralima Nitida (Fam. Apocynaceae). Eur J Pharmacol. 1998 May 29;350(1):101-8.
[1]. Yuanyuan Hou, et al. Microfractionation Bioactivity-Based Ultra Performance Liquid Chromatography/Quadrupole Time-Of-Flight Mass Spectrometry for the Identification of Nuclear factor-κB Inhibitors and β2 Adrenergic Receptor Agonists in an Alkaloidal Extract of the Folk Herb Alstonia Scholaris. J Chromatogr B Analyt Technol Biomed Life Sci. 2012 Nov 1;908:98-104.
[1]. Yuanyuan Hou, et al. Microfractionation Bioactivity-Based Ultra Performance Liquid Chromatography/Quadrupole Time-Of-Flight Mass Spectrometry for the Identification of Nuclear factor-κB Inhibitors and β2 Adrenergic Receptor Agonists in an Alkaloidal Extract of the Folk Herb Alstonia Scholaris. J Chromatogr B Analyt Technol Biomed Life Sci. 2012 Nov 1;908:98-104.
[2]. J R Menzies, et al. Opioid Activity of Alkaloids Extracted From Picralima