Butea Superba

Other Name(s):

Butea Gum Tree, Buteae, Flamme de la Forêt, Kwao Krua Dang, Kwao Krua Rouge, Red Kwao Krua, Red Kwao Krua Daeng.


Butea superba is a vine that grows in India, China, Vietnam, and Thailand. The roots are used as medicine.

People take Butea superba for sexual performance problems (erectile dysfunction, ED) and lack of interest in sexual activity. They also take it for diarrhea, painful or difficult urination, and fever.

How does it work?

It is not known how Butea superba might work as a medicine. Some evidence suggests that the chemicals in Butea superba may act similarly to hormones that regulate sexual function.


Vitamin D Deficiency: How Much Vitamin D Is Enough? See Slideshow

Uses & Effectiveness

Insufficient Evidence to Rate Effectiveness for...

  • Erectile dysfunction (ED).
  • Lack of interest in sexual activity.
  • Diarrhea.
  • Painful or difficult urination.
  • Fever.
  • Other conditions.
More evidence is needed to rate the effectiveness of Butea superba for these uses.

Natural Medicines Comprehensive Database rates effectiveness based on scientific evidence according to the following scale: Effective, Likely Effective, Possibly Effective, Possibly Ineffective, Likely Ineffective, and Insufficient Evidence to Rate (detailed description of each of the ratings).

Side Effects

There isn't enough information to know if Butea superba is safe or what the possible side effects might be.


Next to red peppers, you can get the most vitamin C from ________________. See Answer

Special Precautions & Warnings

Pregnancy and breast-feeding: Not enough is known about the use of Butea superba during pregnancy and breast-feeding. Stay on the safe side and avoid use.


The appropriate dose of Butea superba depends on several factors such as the user's age, health, and several other conditions. At this time there is not enough scientific information to determine an appropriate range of doses for Butea superba. Keep in mind that natural products are not always necessarily safe and dosages can be important. Be sure to follow relevant directions on product labels and consult your pharmacist or physician or other healthcare professional before using.

FDA Logo

Report Problems to the Food and Drug Administration

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.


Cherdshewasart W, Cheewasopit W, Picha P. The differential anti-proliferation effect of white (Pueraria mirifica), red (Butea superba), and black (Mucuna collettii) Kwao Krua plants on the growth of MCF-7 cells. J Ethnopharmacol 2004;93:255-60. View abstract.

Cherdshewasart W, Nimsakul N. Clinical trial of Butea superba, an alternative herbal treatment for erectile dysfunction. Asian J Androl 2003;5:243-6. View abstract.

Ingkaninan K, Temkitthawon P, Chuenchom K, et al. Screening for acetylcholinesterase inhibitory activity in plants used in Thai traditional rejuvenating and neurotonic remedies. J Ethnopharmacol 2003;89:261-4. View abstract.

Manosroi A, Sanphet K, Saowakon S, et al. Effects of Butea superba on reproductive systems of rats. Fitoterapia 2006;77:435-8. View abstract.

Ngamrojanavanich N, Loontaisong A, Pengpreecha S, et al. Cytotoxic constituents from Butea superba Roxb. J Ethnopharmacol 2007;109:354-8. View abstract.

Health Solutions From Our Sponsors