TheraRadar
Data updated: May 26, 2026

BUCAPSOL (buspirone hydrochloride)

CNS Approved 2025-03-13

Bucapsol (buspirone hydrochloride) is an anxiolytic indicated for the management of anxiety disorders or the short-term relief of anxiety symptoms. Its efficacy has been specifically demonstrated in patients with symptoms corresponding to Generalized Anxiety Disorder (GAD), including those with coexisting depressive symptoms. It is intended for the treatment of persistent anxiety (typically lasting at least one month) rather than the routine tension or stress associated with everyday life.

Source: FDA Label • EPIC PHARMA LLC

How BUCAPSOL Works

The precise mechanism of action of buspirone is not fully understood. It differs from benzodiazepines in that it does not exert effects on GABA receptors. Buspirone exhibits a high affinity for serotonin 5-HT1A receptors, where it acts as a partial agonist. It also possesses moderate affinity for dopamine D2 receptors. This unique profile results in anxiolytic effects without significant sedation, muscle relaxation, or anticonvulsant activity.

Source: FDA Label
1
Indication
--
Phase 3 Trials
1
Years on Market

Details

Status
Prescription
First Approved
2025-03-13
Routes
ORAL
Dosage Forms
CAPSULE

Companies

Active Ingredient: BUSPIRONE HYDROCHLORIDE

BUCAPSOL Approval History

2026
Original
New Indication
New Form
Label Update
8 FDA actions from 2025 to 2025
Oct 2025 SUPPL
Label · Labeling
Mar 2025 ORIGINAL
Update

What BUCAPSOL Treats

2 indications

BUCAPSOL is approved for 2 conditions since its original approval in 2025. These indications span multiple therapeutic areas including oncology, immunology, and more.

  • Anxiety Disorders
  • Generalized Anxiety Disorder
Source: FDA Label

BUCAPSOL Competitive Set

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Drugs Similar to BUCAPSOL

3 of 9

FDA-approved drugs for similar conditions. Compare mechanisms and indications to understand treatment alternatives.

BUSPIRONE HYDROCHLORIDE
BUSPIRONE HYDROCHLORIDE
2 shared
EGIS
Shared indications:
Anxiety DisordersGeneralized Anxiety Disorder
DRIZALMA SPRINKLE
DULOXETINE HYDROCHLORIDE
1 shared
Sun Pharma
Shared indications:
Generalized Anxiety Disorder
EFFEXOR XR
VENLAFAXINE HYDROCHLORIDE
1 shared
UPJOHN
Shared indications:
Generalized Anxiety Disorder
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Clinical Trial Registry

2 trials
Trial Sponsor ID Phase Status Title
NCT04458324 2020P001363 Ph 2 active not recruiting Hybrid Functional Electrical Stimulation Exercise to Prevent Cardiopulmonary Declines in High-level Spinal Cord Injury
NCT01743235 EB90 EB90 Ph 2 completed Lybridos in Pre- and Postmenopausal Women With Hypoactive Sexual Desire Disorder Due to Maladaptive Activation of Sexual Inhibitory Systems
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Active Pipeline

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Key Completed Trials

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Trial Timeline

Full development history with FDA approval milestones

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Understanding FDA Approval Types
Count Type What it means
- ORIG Original approval - drug first enters market
- SUPPL - Efficacy New indication (new disease/condition approved)
- SUPPL - Labeling Label text changes (warnings, dosing updates)
- SUPPL - Manufacturing Production changes (new facility)
- SUPPL - Chemistry Formulation changes (new dosage strength)

Green lines in the timeline show ORIG and Efficacy approvals - the clinically meaningful milestones.

BUCAPSOL FDA Label Details

Indications & Usage

BUCAPSOL is indicated for the treatment of Anxiety Disorders; Generalized Anxiety Disorder.

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Data Sources

Data sourced from official FDA and NIH databases. Click links to verify on original sources.