yohimbine


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yohimbine

[yō′him‚bīn]
(pharmacology)
C21H26N2O3 An alkaloid derived from plants that is a weak blocker of alpha-adrenergic receptors, used as a mydriatic and in the treatment of impotence.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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Not all patients with panic disorder report severe anxiety responses to caffeine, sodium lactate or yohimbine. The 70 percent who do may represent a subgroup with specific biological problems, but it is too early to tell, says Reiman.
Injections of the [[alpha].sub.2]-adrenoceptor antagonist yohimbine into the LPBN resulted in a 77% inhibition of spontaneous activity of visceral-responsive neurons in the ventral basal thalamus (37), suggesting that [[alpha].sub.2]-adrenoceptors in the LPBN may modulate the visceral sensory information that ascends from AP/mNTS to the visceral forebrain.
The main one, yohimbine, may increase blood flow to the penis, and may also affect the central nervous system, specifically in the lower spinal cord region where sexual responses are conveyed.
pilocarpine, atropine, methylene blue (Chengdu Pharmaceutical Factory, Chengdu, China), capsaicin, yohimbine, diazoxide (Sigma, USA).
Hence, many of the former customers of the drugs Alprostadil or Yohimbine immediately started taking Viagra.
Yohimbine can bind to the same receptors, blocking the effects of adrenaline and allowing more insulin to be released.
Similarly, opiate withdrawal-related LC hyperactivity could be turned off by clonidine, and that inhibition reversed by yohimbine or piperoxane.
CP-55,940, Naloxone, U-69,593, muscimol, MK801, yohimbine and methysergide were obtained from Tocris Cookson Ltd.
Cai, "Postsynaptic alpha-2 receptor stimulation improves memory in aged monkeys: indirect effects of yohimbine versus direct effects of clonidine," Neurobiology of Aging, vol.
Indomethacin, omeprazole, celecoxib, SC560, N-G-nitro-L-arginine methyl ester (L-NAME), N-ethylmaleimide (NEM), yohimbine, and glibenclamide were obtained from Sigma-Aldrich (Sigma Chemicals Co., St.
The older version of the Grenade Fat Burner pills also contained yohimbine, another herbal stimulant that can cause side effects, such as rapid heart rate, high blood pressure, headaches and has even been linked to seizures and kidney failure.