Wall. ex Baker
Kaempferia parviflora, the Thai black ginger, Thai ginseng or krachai dum, is an herbaceous plant in the family Zingiberaceae, native to Thailand. Kaempferia parviflora has been the subject of increased scientific interest in recent years. In a systematic review in 2016, 683 records and 7 studies were analyzed, with a reference that krachai dum significantly increased hand grip strength and enhanced the response to sexual erotic stimuli. An earlier study found that acute dosing did not have an effect on sprint and endurance exercise in humans, but indicated that chronic effects or actions in other populations cannot be excluded. A study from 2007 found that the ethanolic extract but not the volatile oil of kaempferia parviflora had antiallergic properties. 
- Saokaew, S; Wilairat, P; Raktanyakan, P; Dilokthornsakul, P; Dhippayom, T; Kongkaew, C; Sruamsiri, R; Chuthaputti, A; Chaiyakunapruk, N (2016). "Clinical Effects of Krachaidum (Kaempferia parviflora): A Systematic Review". Journal of Evidence-Based Complementary & Alternative Medicine. 22 (3): 413–428. doi:10.1177/2156587216669628. PMC 5871153. PMID 27694558.
- Wasuntarawat, C; Pengnet, S; Walaikavinan, N; Kamkaew, N; Bualoang, T; Toskulkao, C; McConell, G (2010). "No effect of acute ingestion of Thai ginseng (Kaempferia parviflora) on sprint and endurance exercise performance in humans". Journal of Sports Sciences. 28 (11): 1243–50. doi:10.1080/02640414.2010.506221. PMID 20845210.
- Tewtrakul, Supinya; Subhadhirasakul, Sanan (2007-02-12). "Anti-allergic activity of some selected plants in the Zingiberaceae family". Journal of Ethnopharmacology. 109 (3): 535–538. doi:10.1016/j.jep.2006.08.010. ISSN 0378-8741. PMID 16978816.
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