What is Yohimbe? - warnings, etc.
"Yohimbe as a sexual stimulant, also useful for erectile dysfunction
Yohimbe is derived from the bark of the evergreen tree, Pausilinia yohimbe which was formerly known as Coryanthe yohimbe. This tree is native to West African forests and belongs to the Rubiaceae family. Why is yohimbe considered an aphrodisiac? The primary active constituent of yohimbe bark is yohimbine HCI or Indole alkaloid, a psychoactive chemical of the tryptamine chemical class. In the standardized form, this substance is known as yohimbine hydrochloride and sold in the United States as a prescription drug for sexual and erective dysfunction among men. As a sexual stimulant yohimbine works by blocking alpha-2 andrenergic receptors and improving the dilation of blood vessels. Both these processes are crucial in achieving and maintaining an erection among men since the increase in blood flow to the penis helps to bring about an erection. In its herbal form, yohimbine is believed to work in the same way as the standardized drug and this is the reason why the bark of the yohimbe tree figured as an popular aphrodisiac for men in traditional cultures.
Yet another way in which yohimbe works to treat impotence is by increasing the body’s production of the chemical norepinephrone which is an essential for the ability to have an erection.
Yohimbe boost libido
Besides treating erection problems, yohimbe is also believed to help in cases of low libido. The herb acts as a stimulant for the pelvic nerve ganglia besides injecting adrenaline to nerve endings. The result is heightened sensitivity in genital areas and greater sexual stamina. All these benefits serve to prolong erection and have better quality sex even among men who are not overtly suffering from erectile dysfunction.
Other than yohimbine HCI, the bark of yohimbe contains 31 other types of Yohimbane alkaloid. Even though in popular terminology, yohimbine, yohimbine hydrochloride and yohimbe bark extract are often used interchangeably, they are not identical and refer to various states and composition of the aphrodisiac substance."
See entire article @ FutureScopes