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Scientific name: Turnera diffusa syn. Turnera Aphrodisiaca
Family: Turneraceae
Habitat: The plant is found mainly in the region of the Gulf of Mexico, the Caribbean and southern Africa.


Essential oil, chlorophyl, two resins, albuminoids, tannin, hydroquinone glycosides, cyanogenic glycosides


Diuretic, laxative, stimulant and tonic.


Aphrodisiac (increases libido), treats sterility or sexual impotence, increases sexual appetite, antidepressant, stimulating tonic to the central nervous system and reproductive organs, tonic for fatigue, colds and body aches, nervous dyspepsia, antidepressant action, of value in renal and cystic catarrh, relieves irritation of the urinary passages and is a diuretic.

Also traditionally used as an anti-diabetic agent, for cachexia and in the case or over/underdeveloped breasts, incontinence of old people, chronic prostatic discharge, frigidity of females, and to aid the establishment of normal menstrual flow in young girls.

It is valuable in renal and cystic catarrh and in general irritation of the urinary passages, through its influence in soothing irritation of mucous membranes. (Ellingswood p.440)

Principal: Sexual dysfunction, decreased libido.
Major: For strengthening & stimulation during exertion (overwork), for boosting and maintaining physical and mental capacity.
Minor: Anxiety & depression associated with hormonal changes (e.g. menopause), nervous dyspepsia, constipation


Damiana herb consists of the herb of Turnera diffusa and its variations.

Medicinal Parts

The medicinal parts are the leaves harvested during the flowering season and tops.

Precautions and Adverse Reactions

No health hazards or side effects are known in conjunction with the proper administration of designated therapeutic dosages.


– Patients with hypoglycaemia.
– Patients with overactive sympathetic nervous system activity.


Standard infusion: 2 to 4 onces.
Fresh Plant Tincture: [1:2] 20-30 drops.
Dry Plant Tincture: [1:5, 60% alcohol] 30-60 drops, all to 3X a day.(Herbal Energetics)
Tincture and fluid extract: 10 to 40 drops doses.
Tea: 1 teaspoon to each cup boiling water; infuse 15 minutes. 1/2 – 1 cup.
Tablets/capsules: One 300mg capsule or capsules after meals thrice daily.

Damiana Herbal Formula

Infusion of Damiana
1 ounce Damiana leaves (cut)
1 1/4 pints distilled water

Boil the water, and while boiling, pour over the herbs. Cover and set in a hot place to steep for 15 minutes. Strain and add honey to taste. Allow to cool, and keep in a cold place.

1 wineglassful 3 or 4 times a day between meals. Children, less according to age.

Clinical studies

A herbal preparation containing damiana as one of the ingredients was reported to have a favourable effect on the symptoms of irritable bladder associated with functional and neurohormonal disorders, and on bacterial bladder infections. However, because of the methodological limitations of this study, these effects cannot be attributed to damiana. (Joanne Barnes, etal.)

Pharmacological evaluation of Bioactive Principle of Turnera aphrodisiaca

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Turnera Diffusa

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Damiana (Turnera diffusa Willd.) – a traditionally used aphrodisiac as modern PDE-5 inhibitor

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Herbal Manual by Harold Ward
Bartram’s Encyclopedia of Herbal Medicine by Thomas Bartram
Elementary Treatise in Herbology By Dr. Edward E. Shook
Herbal Energetics and Materia Medica
Plants Used in Mexico Traditional Medicine
Natural health Encyclopedia
PDR for Herbal Medicine pub. 2000 by Joerg Gruenwald, PhD etal
William Boericke – Pocket Manual Materia Medica
Petersen’s Materia Medica

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