Pharmacological facilitation of fear extinction and the search for adjunct treatments for anxiety disorders--the case of yohimbine.

Article Details

Citation

Holmes A, Quirk GJ

Pharmacological facilitation of fear extinction and the search for adjunct treatments for anxiety disorders--the case of yohimbine.

Trends Pharmacol Sci. 2010 Jan;31(1):2-7. doi: 10.1016/j.tips.2009.10.003. Epub 2009 Dec 28.

PubMed ID
20036429 [ View in PubMed
]
Abstract

There is current interest in identifying drugs that facilitate fear extinction, as this form of learning is the basis of certain cognitive therapies for anxiety disorders. Following an initial report several years ago that the alpha2-adrenoreceptor antagonist yohimbine facilitated extinction in mice, more recent studies have shown mixed effects or even impairment. It has become clear that the effect of yohimbine on extinction depends on a number of factors, including genetic background, contextual variables and the presence of competing behaviors. To what extent theses effects of yohimbine are mediated through the alpha2-adrenoreceptor, as opposed to other sites of action, is also uncertain. More work is needed before this drug can be approved as a pharmacological adjunct for extinction-based therapies. More generally, the case of yohimbine may serve as a model for the development of other extinction facilitators.

DrugBank Data that Cites this Article

Drugs
Drug Targets
DrugTargetKindOrganismPharmacological ActionActions
Yohimbine5-hydroxytryptamine receptor 1AProteinHumans
Unknown
Partial agonist
Details
Yohimbine5-hydroxytryptamine receptor 1BProteinHumans
Unknown
Partial agonist
Details
Yohimbine5-hydroxytryptamine receptor 1DProteinHumans
Unknown
Partial agonist
Details
Yohimbine5-hydroxytryptamine receptor 2AProteinHumans
Unknown
Antagonist
Details
Yohimbine5-hydroxytryptamine receptor 2CProteinHumans
Unknown
Antagonist
Details
Drug Interactions
DrugsInteraction
Alprazolam
Yohimbine
The therapeutic efficacy of Alprazolam can be increased when used in combination with Yohimbine.
Bromazepam
Yohimbine
The therapeutic efficacy of Bromazepam can be increased when used in combination with Yohimbine.
Butriptyline
Yohimbine
The therapeutic efficacy of Butriptyline can be increased when used in combination with Yohimbine.
Chlordiazepoxide
Yohimbine
The therapeutic efficacy of Chlordiazepoxide can be increased when used in combination with Yohimbine.
Chlormezanone
Yohimbine
The therapeutic efficacy of Chlormezanone can be increased when used in combination with Yohimbine.