top of page


1. Waterhouse, G., et al., 1979. Simon van der Stel’s Journey to Namaqualand in 1685. Human & Rousseau, Cape Town

2. Gericke, N., and Viljoen, A.M., 2008. Sceletium—a review update. Journal of Ethnopharmacology 119(3), 653-663

3. Serefoglu et al (2014). An Evidence-Based Unified Definition of Lifelong and Acquired Premature Ejaculation: Report of the Second International Society for Sexual Medicine Ad Hoc Committee for the Definition of Premature Ejaculation. The Journal of Sexual Medicine, 11(6), 1423–1441. doi:10.1111/jsm.12524

4. Gao J, Zhang X, Su P, Liu J, Xia L, Yang J, Shi K, Tang D, Hao Z, Zhou J, Liang C. Prevalence and factors associated with the complaint of premature ejaculation and the four premature ejaculation syndromes: a large observational study in China. J Sex Med. 2013 Jul;10(7):1874-81. doi: 10.1111/jsm.12180. Epub 2013 May 7. PMID: 23651451;

5. Kanna Health patient survey

6. ISSM website, retrieved May 2023

bottom of page