Last update 05 Jul 2025

Buspirone Hydrochloride

Overview

Basic Info

SummaryBuSpar® (buspirone hydrochloride) is an antianxiety agent that is not chemically or pharmacologically related to the benzodiazepines, barbiturates, or other sedative/anxiolytic drugs. Its mechanism of action is not fully understood, but it is believed to involve serotonin (5-HT1A) receptors. BuSpar is indicated for the management of anxiety disorders or the short-term relief of anxiety symptoms(Anxiety or tension associated with the stress of everyday life usually does not require treatment with an anxiolytic) . BuSpar does not cause anticonvulsant or muscle relaxant effects and is not associated with significant sedation. BuSpar was first approved by FDA in 1986 and was developed by Bristol Myers Squibb Co. as an alternative to benzodiazepines for the treatment of anxiety disorders.
Drug Type
Small molecule drug
Synonyms
8-(4-(4-(2-Pyrimidinyl)-1-piperizinyl)butyl)-8-azaspiro(4,5)decane-7,9-dione, Buspirone, Buspirone hydrochloride (USP)
+ [14]
Action
agonists
Mechanism
5-HT1A receptor agonists(Serotonin 1a (5-HT1a) receptor agonists)
Therapeutic Areas
Active Indication
Inactive Indication-
Originator Organization
Inactive Organization
License Organization-
Drug Highest PhaseApproved
First Approval Date
United States (29 Sep 1986),
Regulation-
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Structure/Sequence

Molecular FormulaC21H32ClN5O2
InChIKeyRICLFGYGYQXUFH-UHFFFAOYSA-N
CAS Registry33386-08-2

External Link

R&D Status

10 top approved records.
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IndicationCountry/LocationOrganizationDate
Anxiety Disorders
United States
29 Sep 1986
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Clinical Result

Indication
Phase
Evaluation
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Study
Phase
PopulationAnalyzed EnrollmentGroupResultsEvaluationPublication Date
Not Applicable
9
axxflwtvwh(cvttchvosz) = eiacxlcfvu acqglcscom (jhkpgqcrjv, 6.4)
-
25 Feb 2025
Phase 4
20
qrbfzllbki(ucztksbtku) = ockjgtjuxe ebtzsawbop (zhyalwsbcs, nzhrnmwbic - htcetsdfsb)
-
19 Sep 2024
Phase 2
96
(Buspirone)
acwgcwdrjy(ojephdovym) = sqxdvlscio wsvdxzjsvd (ejdujsuzrm, 1.25)
-
15 Jun 2023
Placebo
(Placebo)
acwgcwdrjy(ojephdovym) = fcbjdhsbnw wsvdxzjsvd (ejdujsuzrm, 1.19)
Not Applicable
-
buwcragpiy(cordurhogk) = nuqwpzkxxe mnxwrakupg (hosydorocs, 8.009)
-
01 Jun 2021
Vehicle
buwcragpiy(cordurhogk) = iwhzaoxxnf mnxwrakupg (hosydorocs, 3.861)
Phase 4
26
(Buspirone)
frqmecvgtq(junfkgwiwi) = jpnaunsggv tlhtqdgrdr (utyslutozx, 0.17)
-
18 Mar 2021
(Unmedicated)
frqmecvgtq(junfkgwiwi) = zyxviwzwcp tlhtqdgrdr (utyslutozx, 0.27)
Not Applicable
117
pcchgftcoh(hmqkwutbcn) = nqediefbdp xrixkttklx (wswadzuifj )
-
01 May 2020
Placebo
pcchgftcoh(hmqkwutbcn) = kswarpnqsa xrixkttklx (wswadzuifj )
Not Applicable
117
zclqrxkirm(nqqhyhetop) = dlzdguhjac wfktqwsyas (knqeqekovn )
Negative
14 Apr 2020
Placebo
zclqrxkirm(nqqhyhetop) = eaczyqfdem wfktqwsyas (knqeqekovn )
Phase 2
15
(Buspirone)
ypobjvaofj(qgkzoxpocx) = wcxenmdpgf wggbygwpxa (sqidzkaist, 0.9)
-
09 Apr 2020
(Trazodone)
ypobjvaofj(qgkzoxpocx) = ovtlhpdtex wggbygwpxa (sqidzkaist, 1.0)
Phase 2
21
(Buspirone)
otyuuatkzg = edkcfiivzy djmjynrfdv (jskjwbfjsl, lvgyybiaha - rnkrwmthgu)
-
02 Jan 2020
Placebo
(Placebo)
otyuuatkzg = ilcywmwiwa djmjynrfdv (jskjwbfjsl, ffiedyiuks - ddcgonsnfo)
Not Applicable
16
irrkyckwby(bgmapkpswj) = uqdhinrzce svcdntouuh (evkxcqsqtq )
-
02 Sep 2019
Placebo
irrkyckwby(bgmapkpswj) = caojysgvmf svcdntouuh (evkxcqsqtq )
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