Features

• The active compounds in tribulus are steroidal saponins (steroid emulsifiers).
  
  

Claims

• Dr. B. Ramdelholl, who works with tribulus, uses it to treat high blood pressure, cholesterol and intestinal colic. He suggests that it might have a positive effect on bone marrow activity and the immune system. These claims are refuted by other well-known medical experts, such as Dr. Rick Gordon.
  
  

Considerations

• Evidence seems to be largely anecdotal. Clinical trials have shown tribulus to have no medicinal effects on humans. Growers of tribulus are careful not to grow the herb near other crops or around animals as it has been known to be toxic.
  
  

Side Effects

• Stomach upset, increased heartbeat, restlessness and feeling hotter have been reported.
  
  

Warnings

• Even advocates of the herb warn that incorrect or prolonged use can result in brain disorders and weakened muscle function that could be fatal. Teenage males, pregnant or breastfeeding women, as well as anyone being treated for heart conditions, hormone induced conditions, cancer or prostate problems are warned against taking tribulus.