Brand Name
Bucapsol
Generic Name
BusPIRone
View Brand Information FDA approval date: March 28, 2001
Form: Tablet, Capsule
What is Bucapsol (BusPIRone)?
Buspirone hydrochloride tablets are indicated for the management of anxiety disorders or the short-term relief of the symptoms of anxiety. Anxiety or tension associated with the stress of everyday life usually does not require treatment with an anxiolytic. The efficacy of buspirone has been demonstrated in controlled clinical trials of outpatients whose diagnosis roughly corresponds to Generalized Anxiety Disorder . Many of the patients enrolled in these studies also had coexisting depressive symptoms and buspirone relieved anxiety in the presence of these coexisting depressive symptoms. The patients evaluated in these studies had experienced symptoms for periods of 1 month to over 1 year prior to the study, with an average symptom duration of 6 months. Generalized Anxiety Disorder (30.
Approved To Treat
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Brand Information
Bucapsol (Buspirone Hydrochloride)
1DESCRIPTION
Bucapsol
Buspirone hydrochloride is a white crystalline, water soluble compound with a molecular weight of 422.0. Chemically, buspirone hydrochloride is 8-[4-[4-(2-pyrimidinyl)-1-piperazinyl]butyl]-8-azaspiro[4.5]decane-7,9- dione monohydrochloride. The empirical formula C
Bucapsol
2CLINICAL PHARMACOLOGY
The mechanism of action of buspirone is unknown. Buspirone differs from typical benzodiazepine anxiolytics in that it does not exert anticonvulsant or muscle relaxant effects. It also lacks the prominent sedative effect that is associated with more typical anxiolytics.
Buspirone has moderate affinity for brain D
Buspirone hydrochloride is rapidly absorbed in man and undergoes extensive first-pass metabolism. In a radiolabeled study, unchanged buspirone in the plasma accounted for only about 1% of the radioactivity in the plasma. Following oral administration, plasma concentrations of unchanged buspirone are very low and variable between subjects. Peak plasma levels of 1 to 6 ng/mL have been observed 40 to 90 minutes after single oral doses of 20 mg. The single-dose bioavailability of unchanged buspirone when taken as a tablet is on the average about 90% of an equivalent dose of solution, but there is large variability. The capsule and tablet formulations are bioequivalent.
The effects of a high fat meal on the bioavailability of buspirone hydrochloride capsules have been studied in 40 subjects who were given a 30 mg dose with and without food. With food, the area under the plasma concentration-time curve (AUC) and peak plasma concentration (C
When the capsule was opened and its contents administered in 1 oz of applesauce following a meal, the AUC and C
When the capsule was opened and its contents administered in 1 oz of applesauce following a meal, the AUC and C
The effects of food upon the bioavailability of BuSpar Tablets have been studied in eight subjects. They were given a 20-mg dose with and without food; the AUC and C
A multiple-dose study conducted in 15 subjects suggests that buspirone has nonlinear pharmacokinetics. Thus, dose increases and repeated dosing may lead to somewhat higher blood levels of unchanged buspirone than would be predicted from results of single-dose studies.
An
Buspirone is metabolized primarily by oxidation, which
In a single-dose study using
3INDICATIONS AND USAGE
Bucapsol
The efficacy of buspirone hydrochloride has been demonstrated in controlled clinical trials of outpatients whose diagnosis roughly corresponds to Generalized Anxiety Disorder (GAD). Many of the patients enrolled in these studies also had coexisting depressive symptoms and buspirone hydrochloride relieved anxiety in the presence of these coexisting depressive symptoms. The patients evaluated in these studies had experienced symptoms for periods of 1 month to over 1 year prior to the study, with an average symptom duration of 6 months. Generalized Anxiety Disorder (300.02) is described in the American Psychiatric Association's Diagnostic and Statistical Manual, III
Generalized, persistent anxiety (of at least 1 month continual duration), manifested by symptoms from three of the four following categories:
1. Motor tension: shakiness, jitteriness, jumpiness, trembling, tension, muscle aches, fatigability, inability to relax, eyelid twitch, furrowed brow, strained face, fidgeting, restlessness, easy startle.
2. Autonomic hyperactivity: sweating, heart pounding or racing, cold, clammy hands, dry mouth, dizziness, lightheadedness, paresthesias (tingling in hands or feet), upset stomach, hot or cold spells, frequent urination, diarrhea, discomfort in the pit of the stomach, lump in the throat, flushing, pallor, high resting pulse and respiration rate.
3. Apprehensive expectation: anxiety, worry, fear, rumination, and anticipation of misfortune to self or others.
4. Vigilance and scanning: hyperattentiveness resulting in distractibility, difficulty in concentrating, insomnia, feeling "on edge", irritability, impatience.
The above symptoms would not be due to another mental disorder, such as a depressive disorder or schizophrenia. However, mild depressive symptoms are common in GAD.
The effectiveness of buspirone hydrochloride in long-term use, that is, for more than 3 to 4 weeks, has not been demonstrated in controlled trials. There is no body of evidence available that systematically addresses the appropriate duration of treatment for GAD. However, in a study of long-term use, 264 patients were treated with buspirone hydrochloride for 1 year without ill effect. Therefore, the physician who elects to use buspirone hydrochloride for extended periods should periodically reassess the usefulness of the drug for the individual patient.
4CONTRAINDICATIONS
Bucapsol
The use of monoamine oxidase inhibitors (MAOIs) intended to treat depression with buspirone or within 14 days of stopping treatment with buspirone is contraindicated because of an increased risk of serotonin syndrome and/or elevated blood pressure. The use of buspirone within 14 days of stopping an MAOI intended to treat depression is also contraindicated. Starting buspirone in a patient who is being treated with reversible MAOIs such as linezolid or intravenous methylene blue is also contraindicated because of an increased risk of serotonin syndrome. (see
5WARNINGS
The administration of Bucapsol There have been reports of the occurrence of elevated blood pressure when buspirone hydrochloride has been added to a regimen including an MAOI. Therefore, it is recommended that Bucapsol TM capsules not be used concomitantly with an MAOI.
5.1Serotonin Syndrome
The development of a potentially life-threatening serotonin syndrome has been reported with SNRIs, SSRIs, and other serotonergic drugs, including buspirone, alone but particularly with concomitant use of other serotonergic drugs (including triptans), with drugs that impair metabolism of serotonin (in particular, MAOIs, including reversible MAOIs such as linezolid and intravenous methylene blue), or with antipsychotics or other dopamine antagonists.
Serotonin syndrome symptoms may include mental status changes (e.g., agitation, hallucinations, delirium, and coma), autonomic instability (e.g., tachycardia, labile blood pressure, dizziness, diaphoresis, flushing, hyperthermia), neuromuscular changes (e.g., tremor, rigidity, myoclonus, hyperreflexia, incoordination), seizures, and/or gastrointestinal symptoms (e.g., nausea, vomiting, diarrhea). Patients should be monitored for emergence of serotonin syndrome.
The concomitant use of buspirone with MAOIs intended to treat depression is contraindicated. Buspirone should also not be started in a patient who is being treated with reversible MAOIs such as linezolid or intravenous methylene blue. All reports with methylene blue that provided information on the route of administration involved intravenous administration in the dose range of 1 mg/kg to 8 mg/kg. There have been no reports involving the administration of methylene blue by other routes (such as oral tablets or local tissue injection) or at lower doses. There may be circumstances when it is necessary to initiate treatment with a reversible MAOI such as linezolid or intravenous methylene blue in a patient taking buspirone. Buspirone should be discontinued before initiating treatment with the reversible MAOI [see
If concomitant use of buspirone with a 5-hydroxytryptmine receptor agonist (triptan) is clinically warranted, careful observation of the patient is advised, particularly during treatment initiation and dose increases.
The concomitant use of buspirone with serotonin precursors (such as tryptophan) is not recommended.
Treatment with buspirone and any concomitant serotonergic or antidopaminergic agents, including antipsychotics, should be discontinued immediately if the above events occur and supportive symptomatic treatment should be initiated.
Because Bucapsol
6DOSAGE AND ADMINISTRATION
The recommended initial dose is 15 mg daily (7.5 mg two times per day). To achieve an optimal therapeutic response, at intervals of 2 to 3 days the dosage may be increased 5 mg per day, as needed. The maximum daily dosage should not exceed 60 mg per day. In clinical trials allowing dose titration, divided doses of 20 to 30 mg per day were commonly employed.
The bioavailability of buspirone is increased when given with food as compared to the fasted state (see
For patients who have difficulty swallowing capsules, Bucapsol
When buspirone is to be given with a potent inhibitor of CYP3A4, the dosage recommendations described in the
Switching a Patient To or From a Monoamine Oxidase Inhibitor (MAOI) Antidepressant
At least 14 days should elapse between discontinuation of an MAOI intended to treat depression and initiation of therapy with Bucapsol
Use of Bucapsol
Do not start Bucapsol
In some cases, a patient already receiving therapy with Bucapsol
The risk of administering methylene blue by non-intravenous routes (such as oral tablets or by local injection) or in intravenous doses much lower than 1 mg per kg with Bucapsol
7HOW SUPPLIED
Bucapsol
Bucapsol
7.5 mg capsules NDC 81279-122-60 Bottles of 60
Bucapsol
10 mg capsules NDC 81279-123-60 Bottles of 60
Bucapsol
15 mg capsules NDC 81279-124-60 Bottles of 60
Store at 20° to 25°C (68° to 77°F); excursions permitted to 15° to 30°C (59° to 86°F) [See USP Controlled Room Temperature].
Dispense in a tight, light-resistant container as defined in the USP, with a child-resistant closure (as required).
KEEP THIS AND ALL MEDICATIONS OUT OF THE REACH OF CHILDREN.
8REFERENCES
- American Psychiatric Association, Ed.: Diagnostic and Statistical Manual of Mental Disorders-III, American Psychiatric Association, May 1980.
Manufactured For:
Pangea Pharmaceuticals
Brielle, NJ 08730
Rev. 04-2025-00
MF122REV04/25P
OS0023
9PACKAGE/LABEL PRINCIPAL DISPLAY PANEL -Bucapsol™ (buspirone hydrochloride) capsules– 7.5 mg 60ct
10PACKAGE/LABEL PRINCIPAL DISPLAY PANEL -Bucapsol™ (buspirone hydrochloride) capsules- 10 mg 60ct
11PACKAGE/LABEL PRINCIPAL DISPLAY PANEL -Bucapsol™ (buspirone hydrochloride) capsules- 15 mg 60ct
