I was checking out my ECA stack (ThermoGen XS) and googled for Yohimbine (its in my stack) - strangely enough, one of the effects of this herb is reduced
blood pressure, which I guess is why they put it in with the Ma Huang. But increased blood pressure is listed as a side effect! I can't work it out!?
"Yohimbine, is an herb derived from the inner bark of the yohimbe tree. Native to southwestern Nigeria, Cameroon, Gabon and the Congo, the active component of this bark is yohimbine, which is an alkaloid monoamine oxidase (MAO) inhibitor that blocks adrenergic receptors. As a result of this MAO inhibition, the
blood vessels dilate and blood pressure lowers. The dilation of the blood vessels is the generally accepted explanation as to the effects of the bark.
However, it is important to note that the FDA has classified yohimbine as an unsafe herb. Because of the proliferation of negative side effects such as anxiety, increased blood pressure, heart rate increase, dizziness, headache, and skin flushing the taking of yohimbine extract should be done with caution. These side effects may or not apply to you if you do decide to take a yohimbine extract be aware of the physiological effects of the bark. Yohimbine is not recommended for excessive or long-term use."