The active component of
yohimbe bark seems to be a compound known as yohimbine. Yohimbine probably works in several different ways for treating problems associated with
impotence, including both physical and psychological issues. It may increase blood flow to the penis and may help stimulate nerve impulses to the genitals. It is not clear how (or if) yohimbine works for other uses.
It has been suggested that yohimbine may work as an alpha-2 receptor blocker (which probably contributes to its effectiveness for impotence), as a monoamine oxidase inhibitor (MAOI), as a
calcium channel blocker, and as a serotonin blocker.
It is not known if yohimbe is safe for use in children. Keep in mind that children may be more sensitive to the effects and toxicities of medications or supplements. Check with your child's healthcare provider before giving your child yohimbe for any purpose.