The C.A.M. Report
Complementary and Alternative Medicine: Fair, Balanced, and to the Point
  • About this web log

    This blog ran from 2006 to 2016 and was intended as an objective and dispassionate source of information on the latest CAM research. Since my background is in pharmacy and allopathic medicine, I view all CAM as advancing through the development pipeline to eventually become integrated into mainstream medical practice. Some will succeed while others fail. But all are treated fairly here.

  • About the author

    John Russo, Jr., PharmD, is president of The MedCom Resource, Inc. Previously, he was senior vice president of medical communications at, a complementary and alternative medicine website.

  • Common sense considerations

    The material on this weblog is for informational purposes. It is not medical advice or counsel. Be smart, consult your health professional before using CAM.

  • Recent Posts

  • Recent Comments

    Lack of effect of Tribulus terrestris on muscle strength in rugby league players

    The good news? There’s no risk of a positive test for doping.

    First, the details.

    • 22 Australian elite male rugby league players were randomly assigned to take T. terrestris (puncture vine) extract (450 mg/day) or placebo capsules once daily for 5 weeks.
    • Neither the researchers nor volunteers knew their treatment.
    • All volunteers performed structured heavy resistance training as part of the club’s preseason preparations.

    And, the results.

    • After 5 weeks of training, strength and fat-free mass increased significantly, but there were no differences between the group.
    • There was no difference in the urinary testosterone/epitestosterone (T/E) ratio, which may place athletes at risk of a positive drug test.

    The bottom line?
    The authors concluded, “T. terrestris did not produce the large gains in strength or lean muscle mass that many manufacturers claim can be experienced within 5 to 28 days. Furthermore, T. terrestris did not alter the urinary T/E ratio and would not place an athlete at risk of testing positive based on the World Anti-Doping Agency’s urinary T/E ratio limit of 4:1.

    Body building websites typically claim that T. terrestris “boosts” testosterone levels. “Boost” is your first clue that the drug is useless. These study results provide your second clue.

    9/25/07 15:03 JR

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