Eurycoma Longifolia

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  • Eurycoma longifolia, also known as Long Jack is a tall, slender evergreen shrub-tree commonly found in Southeast Asia.
  • Malaysian men claim that tea made from this plant improves their sexual abilities and virility. As a result, this plant is in such high demand that it is now considered a “protected” species.


The root and bark of Eurycoma longifolia are used for:

  • Treating erectile dysfunction (ED)
  • Increasing interest in sex
  • Male infertility
  • Boosting athletic performance
  • Body building
  • Reducing body fat.
  • Fever
  • Malaria
  • Ulcers
  • High blood pressure
  • Tuberculosis
  • Bone pain
  • Cough
  • Diarrhea
  • Headache
  • Syphilis
  • Cancer


  • The root of Eurycoma longifolia contains several chemicals that have different effects in the body.
  • Some of the chemicals seem to affect how the body produces the hormone [testosterone]]. Research in animals and humans suggests it might increase testosterone in the body.


  • Insomnia, anxiety, and restlessness have been reported.
  • Do not use tongkat ali if you have breast cancer or prostate cancer, diabetes, heart disease, kidney disease, liver disease, or sleep apnea, as tongkat ali increases testosterone levels.
  • Do not use if you have a weakened immune system or if you’re taking immunosuppressant drugs.
  • As with other supplements, tongkat ali hasn’t been tested for safety in pregnant women, nursing mothers, children, and those with medical conditions or who are taking medications.

Other Names:

Akar Pasak Bumi, Ali’s Umbrella, Ali’s Walking Stick, Batang Pasak Bumi, Canne d’Ali, Eurycoma, Eurycoma longifolia, Eurycoma Longifolia Jack, Eurycoma merguensis, Ginseng de Malaisie, Kayu Dali, Long Jack, Longjack, Malaysian Ginseng, Manotes Asiatica, Pasak Bumi, Picroxylon Siamese, Sengkayap, Tongkat Ali, Tung Saw, Umpudumaidu, Wonod Mondou.


Source: WebMD, “Eurycoma Longifolia” ,

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