Herbs & Supplements:
Damiana
Turnera diffusa

Principal Proposed Uses
  • Male Sexual Capacity
Other Proposed Uses
  • Respiratory Diseases, Asthma, Depression, Digestive Problems, Impotence in Men, Difficulty Achieving Orgasm in Women, Menstrual Disorders

The herb damiana has been used in Mexico for some time as a male aphrodisiac.¹ Classic herbal literature of the nineteenth century describes it as a "tonic," or general body strengthener.

What Is Damiana Used for Today?

Damiana continues to be a popular aphrodisiac for males. However, if it works at all, the effect appears to be rather mild. No scientific trials have been reported.

Damiana is also sometimes said to be helpful for treating asthma and other respiratory diseases, depression, digestive problems, menstrual disorders, and various forms of sexual dysfunction—for example, impotence in men and inability to achieve orgasm in women.^2,3  However, again there is no real evidence that it works for any of these conditions.

Like the herb uva ursi, damiana contains arbutin, although at a concentration about 10 times lower. Arbutin is a urinary antiseptic, but the levels present in damiana are probably too small to make this herb a useful treatment for bladder infections.

Dosage

The proper dosage of damiana is 2 to 4 g taken 2 to 3 times daily, or as directed on the label.

Safety Issues

Damiana appears to be safe at the recommended dosages. It appears on the FDA's GRAS (generally recognized as safe) list and is widely used as a food flavoring. However, because damiana contains low levels of cyanide-like compounds, excessive doses may be dangerous. Safety in young children, pregnant or nursing women, or those with severe liver or kidney disease is not established. The only common side effect of damiana is occasional mild gastrointestinal distress.

Last reviewed March 2002 by Medical Review Board

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