yohimbine

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yo·him·bine

(yō-him'bēn),
An alkaloid, the active principle of yohimbé, the bark of Corynanthe yohimbi (family Rubiaceae); it produces a competitive blockade, of limited duration, of adrenergic α-receptors; has also been used for its alleged aphrodisiac properties.

yohimbine

/yo·him·bine/ (yo-him´bēn) an alkaloid chemically similar to reserpine, from the bark of the yohimbe tree; it possesses alpha-adrenergic blocking properties and is used as the hydrochloride as a sympatholytic and mydriatic, and for the treatment of impotence.

yohimbine

(yō-hĭm′bēn′)
n.
An alkaloid, C21H26N2O3, that is derived from the bark of a tree, Pausinystalia johimbe, and is an alpha-blocker drug used in the form of its hydrochloride as a mydriatic, a treatment for erectile dysfunction, and formerly as an aphrodisiac.

yohimbine

Pharmacognosy
An indolamine alkaloid obtained from the bark of the West African yohimbe tree (Pausinystalia yohimbe) and others (e.g., Rauwolfia serpentina). Yohimbine is used for psychogenic and organic erectile dysfunction, increasing the inflow to and/or decreasing the outflow of blood from the penis by blocking the pre- and post-synaptic alpha-2 adrenoceptors. It has been studied for treating orthostatic hypotension and ischaemia due to autonomonic dysfunction in diabetes and narcotic overdose.

Toxicity
Tachcardia, hypertension, insomnia, nausea, palpitations, tremors, vomiting.

yohimbine

Pharmacognosy An alkaloid used to treat erectile dysfunction, which is chemically similar to reserpine; it may be of use for orthostatic hypotension and ischemic vascular disease caused by autonomonic dysfunction in DM, narcotic overdose, possibly acting to ↑ dopamine release, and for psychogenic and organic impotence, possibly ↑ inflow to and/or ↓ outflow of blood from the penis, with ↑ erection without ↑ sexual desire

yo·him·bine

(yō-him'bēn)
An alkaloid, the active principle of yohimbé, the bark of Corynanthe yohimbi; produces a competitive blockade, of limited duration, of adrenergic α-receptors; has also been used for its alleged aphrodisiac properties.

yo·him·bine

(yō-him'bēn)
An alkaloid, active principle of yohimbé, bark of Corynanthe yohimbi; it produces a competitive blockade, of limited duration, of adrenergic α-receptors; has also been used for its alleged aphrodisiac properties.

yohimbine (yōhim´bēn´),

n an alkaloid, the active principle comes from the bark of
Corynanthe johimbe. It produces a competitive blockage of limited duration of α-adrenergic receptors. It has also been used for its alleged aphrodisiac properties.

yohimbine

an α2 adrenoceptor antagonist used to reverse sedation produced by α2 adrenoceptor agonists such as xylazine.

yohimbine challenge test
used as a test for cataplexy in dogs; after administration, there is a marked reduction in the number and severity of clinical signs.