FDA Approved Substances for the Treatment of Impotence
Before there was Viagra, Cialis, and Levitra, there was Yocon, Yohimex, and Aphrodyne. Yocon, Yohimex, and Aphrodyne are available by prescription. They are derived from Yohimbe, which comes from the inner bark of the African evergreen tree (Pausinystalia yohimbe).
Yohimbe (Yohimbine), Viagra, Cialis, and Levitra are the only four substances that have ever been approved by the FDA for the treatment of impotence. The difference between these sexual dysfunction prescription drugs is that Yohimbe is a natural herb available to everyone and costing much less than the prescription drugs Viagra, Cialis, and Levitra.
A combined analysis of more than a dozen studies involving hundreds of subjects, published in the Journal Archives of Sexual Behavior in August 1996, concluded that yohimbine can help many men who have problems getting an erection. It appears to work by increasing blood flow to the penis, and may affect brain chemistry as well.
A recent clinical study in Rhode Island (published in the Journal of Urology) tested the active ingredient in yohimbe on a group of men who had experienced chronic sexual dysfunction. For those who had been impotent for less than two years the improvement rate was an astounding 81% as a direct result of consuming a moderate dosage over a period of one month.