Damiana, also known as Turnera diffusa, is a type of shrub that typically grows in the subtropical regions of Mexico, Central America and South America, according to Chinese-Herbs.org. It was used by the Aztecs and Mayans to improve health, and was introduced to the United States in 1874. Damiana can be used for specific conditions or as an overall health tonic.
Aphrodisiac
One of the most popular uses for damiana is as an aphrodisiac, although this effect has not been substantiated by scientific research. HerbWisdom.com attributes this to the stimulating effect the herb has on both male and female genitals. Damiana may speed oxygen to those areas, causing an arousing reaction and increasing sexual stamina. In Mexico, a liquor is made from the leaves and marketed as an aphrodisiac. The alkaloid substance present in damiana has a testosterone-like effect, which may also increase libido. Taking an excessive amount of damiana, however, may cause painful over-stimulation. The herb also does not seem to have an effect on sexually potent individuals.
Diabetes
A 1984 study published in the December edition of the "Journal of Ethnopharmacology" found that a damiana leaf may help lower blood sugar levels in patients with diabetes. However, more scientific research is needed to validate this claim, and damiana should not be used as a substitute for prescribed medications. If you have diabetes, do not take damiana without talking to your physician, as a sudden, drastic drop in blood sugar can be dangerous.
Mood Regulator
Damiana may be used to help treat many different types of mood disorders. The herb is thought to produce a stimulating effect that can help relieve mild depression, and the nervous system balancing properties may help relieve anxiety. Damiana can also be a useful supplement to treat other disorders such as paranoia, hypochondria and obsessive-compulsive disorder, according to Chinese-Herbs.org.
Other Uses
Damiana, when taken as a tea or tonic, may help treat digestive system disorders and act as a laxative to relieve constipation. The herb's natural antibacterial properties may help boost the immune system. Damiana may also be used as a general health tonic and to increase energy and stamina. The phytochemicals present in the herb may help relieve symptoms of menopause, including hot flashes and hormonal fluctuations.
Precautions
Damiana's safety has not been validated by scientific research. Damiana may cause complications in patients with breast cancer, schizophrenia, Alzheimer's disease or Parkinson's disease, according to Drugs.com. Damiana may also be harmful to a developing fetus or breastfed baby. When taken in large quantities, damiana may cause headaches, insomnia and liver damage. Herbal remedies should be discussed with a physician prior to use.
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