Eurycoma longifolia is a tall, slender, shrubby tree that grows in sandy soil in Southeast Asian countries such as Malaysia, Indonesia, Thailand, and Myanmar (Burma). In Malaysia, it is planted for its medicinal value. Eurycoma longifolia is traditionally known as "tongkat ali."
Eurycoma longifolia is traditionally used in Malaysia to improve sex drive and to cure sexual dysfunction, as well as for its fever-reducing, blood sugar-lowering, antimalarial, and antibiotic properties. Although tongkat ali is mostly used in males, it is thought to be as effective in females. It is believed that Eurycoma longifolia stimulates testosterone levels, resulting in increased sexual desire and ability, as well as increased athletic ability and muscle strength. However, few studies are available investigating the effect of this herb in humans.
Further research is needed before conclusions can be made on the effectiveness of tongkat ali for any condition.
1,2-Seco-1-nor-6(5->10)abeo-picrasan-2,5-olide skeleton quassinoids, 1beta,12alpha,15beta-triacetyleurycomanone, 1-hydroxy-9-methoxycanthin-6-one, 3-methylcanthin-5,6-dione, 4,5,7,8,17-penta-hydr-oxy-14,18-dimethyl-6-methyl-ene-3,10-dioxapenta-cyclo-[184.108.40.206.0.0]nona-dec-14-ene-9,16-dione methanol solvate dehydrate, 5,6-dehydroeurycomalactone, 5alpha,14beta,15beta-trihydroxyklaineanone, 5-hydroxymethyl-9-methoxycanthin-6-one, 6alpha-hydroxyeurycomalactone, 6-dehydroxylongilactone, 7alpha-hydroxyeurycomalactone, 9,10-dimethoxycanthin-6-one, 9-hydroxycanthin-6-one, 9-hydroxycanthin-6-one n-oxide, 9-methooxycanthin-6-one, 9-methoxycanthin-6-one, 9-methoxycanthin-6-one n-oxide, 10-hydroxy-9-methoxycanthin-6-one, 10-hydroxycanthin-6-one, 11-dehydroklaineanone, 12-epi-11-dehydroklaineanone, 13-21-dihydroeurycomanone, 13alpha,21-dihydroeurycomanone, 13alpha(21)-epoxyeurycomanone, 13beta,18-dihydroeurycomanol, 13beta,21-dihydroxyeurycomanol, 13-beta-21-dihydroxyeurycomanone, 14,15beta-dihydroxyklaineanone, 14-deacetyleurylene, 15beta-acetyl-14-hydroxyklaineanone, 23,24,25-trihydroxytirucall-7-en-3,6-dione, aervin, Ali's cane, Ali's walking stick, amino acids, anthraquinone, anthraquinone glucosides, babi kurus (Javanese), bedara merah (Malay), bedara putih (Malay), beta-7-methoxycarboline-1-propionic acid, beta-carboline alkaloids, beta-carboline-1-propionic acid, bidara laut (Indonesian), biphenylneolignans (2-hydroxy-3,2',6'-trimethoxy-4'-(2,3-epoxy-1-hydroxypropyl)-5-(3-hydroxy-1-propenyl)-biphenyl and 2-hydroxy-3,2'-dimethoxy-4'-(2,3-epoxy-1-hydroxypropyl)-5-(3-hydroxy-1-propenyl)biphenyl), bitter charm, bitter medicine, C18 quassinoids, C19 skeleton quassinoids, C20-skeleton quassinoids, campesterol, canthin-6-one alkaloids (4,9-dimethoxycanthin-6-one, 5,9-dimethoxycanthin-6-one, 9,10-dimethoxycanthin-6-one, 9-methoxy-3-methylcanthin-5,6-dione, 10-hydroxy-11-methoxycanthin-6-one, and 11-hydroxy-10-methoxycanthin-6-one), cay ba binh (Vietnamese), dihydroniloticin, eurycolactone B, eurycolactone D, eurycolactone E, eurycolactone F, Eurycoma apiculata, Eurycoma harmandiana, Eurycoma longifolia Jack, Eurycoma Madu, eurycomalactone, eurycomalide A, eurycomalide B, eurycomanol, eurycomanol-2-O-beta-D-glucoside, eurycomanone, eurycomaoside, eurylactone A, eurylactone B, Force Pill Tongkat Ali, Great Pill Tongkat Ali Plus, laurycolactone A, laurycolactone B, lempedu pahit (Malay), longilactone, Malaysian ginseng, M-Tongkat Ali, muntah bumi (Malay), n-pentyl beta-carboline-1-propionate, oxasqualenoid, pasakbumin B, pasak bumi (Malay), payong ali (Malay), penawar bias (Malay), penawar pahit (Malay), petala bumi (Malay), plalaipeag, saponins, Simaroubaceae (family), sitosterol, squalene-type triterpenes (eurylene, 14-deacetyl eurylene, and longilene peroxide), stigmasterol, Sukarno Tongkat Ali, Super Pill Tongkat Ali, Super Pill Tongkat Ali Plus, TA-a, TA-b, Tender Pill Tongkat Ali, teurilene, tho nan (Laotian), tirucallane-type triterpenes (niloticin, dihydroniloticin, piscidinol A, bourjotinolone A, 3-episapelin A, melianone, and hispidone), tongka ali tea, tongkat ali, tongkat ali hitam, tongkat baginda.
Combination products: Etana (Panax quinquefolius, Eurycoma longifolia, Epimedium grandiflorum, Centella asiatica, and flower pollen extracts).
These uses have been tested in humans or animals. Safety and effectiveness have not always been proven. Some of these conditions are potentially serious, and should be evaluated by a qualified healthcare provider.
Preliminary evidence did not find a strong effect of
Enhanced muscle mass / strength
Some studies found that
increases sexual desire and testosterone levels. Further research is required before conclusions can be drawn.