Yohimbe (Pausinystalia yohimbe Rubiaceae)

Other Names: Yohimbine Tree

Yohimbe, a tree native to tropical African forests, grows up to 30 meters. Its reddish, furrowed bark is yellowish-brown and silky inside with longitudinal grooves. The tree has large, oval, pointed leaves (30–40 cm) and produces fragrant white flowers that turn yellow-red, yielding flat, winged seed pods.

Parts for Use

Bark

1. Harvested from the trunk during the dry season, cut into pieces, and sun-dried.
2. Branch bark is avoided due to fever-inducing compounds.
3. Odorless with a bitter, astringent taste, used in pharmaceuticals.

Ingredients

Contains indole alkaloids, primarily yohimbine, and aimalicin, which contribute to its therapeutic effects.

Use in Treatment

Yohimbe is traditionally used for impotence, particularly in diabetic patients. A 2001 Egyptian study showed yohimbine prevents blood sugar spikes in rats by inhibiting alpha-2 adrenergic receptors, which also aids blood vessel dilation, key for treating impotence. This suggests potential as a natural alternative to pharmaceuticals like Viagra, pending further human studies. Yohimbe also supports low blood pressure treatment and strengthens intestinal muscles to relieve chronic constipation.

Cultivation

Requires moist soil and temperatures above 15°C, necessitating greenhouse cultivation in non-tropical climates.

Preparation and Dosage

For Internal Use (Impotence, Constipation, Low Blood Pressure)

1. Preparations: Use only under the supervision of a qualified herbalist or healthcare professional due to the need for precise dosing.

Warnings

1. Use only under medical supervision.
2. Precise dosing is critical; incorrect amounts may increase blood pressure or cause digestive and nervous issues.
3. Avoid in cases of high blood pressure, liver, or kidney disorders.
4. Do not use during pregnancy or breastfeeding.