Relac

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Medically reviewed

Marina Burgos

Last updated on 22/12/2025

This page provides general, reference-level information compiled from official medical sources. It is not a substitute for professional medical advice, diagnosis, or treatment. For decisions about your health, please consult a qualified healthcare professional.

Overview of Relac

Property Description
Active ingredient Buspirone Hydrochloride
Form Oral Tablet
Pharmacological class Non-benzodiazepine Anxiolytic (Azapirone)
Common use Management of persistent anxiety symptoms
Origin Synthetic

What Type of Medication is Relac (Buspirone)?

Relac is a synthetic, prescription-only anxiolytic agent whose active ingredient is Buspirone Hydrochloride, primarily intended for the management of persistent anxiety. This medication belongs to the Non-benzodiazepine class known as Azapirones, distinguishing it from older types of tranquilizers or sedatives. Its identity is rooted in this unique chemical structure, which is widely supported by pharmacological studies, providing a therapeutic option for adults seeking relief from generalized anxiety without the marked central nervous system depression associated with certain other drug classes.

Composition and General Therapeutic Purpose

The physical form of Relac is an oral tablet taken by mouth, composed solely of the active substance, Buspirone Monohydrochloride, alongside necessary, inert solid excipients. The general therapeutic purpose of the medication is to gradually alleviate the emotional distress, tension, and excessive worry commonly associated with chronic anxiety conditions. This compound is indicated for anxiety states, confirming its role in helping individuals who experience ongoing, persistent anxiety.

Key Characteristics: Selective Action, Not Sedation

Relac is fundamentally characterized by its targeted mechanism of action, working primarily by modulating serotonin receptors in the brain, a process clinically recognized for its gradual, therapeutic effect. Unlike typical benzodiazepine anxiolytics, buspirone does not exert prominent sedative, muscle-relaxant, or anticonvulsant effects. This anxioselective profile means the medication focuses on promoting emotional balance over time, offering sustained relief that is distinguishable from the immediate tranquilizing effects associated with traditional sedative agents.

What side effects are possible with Relac?

Possible Side Effects and Safety Information

Relac (Buspirone Hydrochloride) is associated with officially documented adverse reactions, which are classified by regulatory agencies based on their reported frequency in clinical use. The most frequently observed effects generally relate to the central nervous system and psychiatric domains.

Regulatory Classification of Adverse Reactions

The frequency framework defines the likelihood of occurrence:

  • Very Common: Dizziness, Headache, and Somnolence (occurring in 1 in 10 patients or more).
  • Common: Nausea, Insomnia, Nervousness, Excitement, Confusion, Depression, Dry mouth, Fatigue, and Weakness. Other common effects include chest pain, palpitations, and various gastrointestinal disturbances.
  • Uncommon/Rare/Very Rare: Effects such as hypotension, hypertension, urinary retention, and serious hypersensitivity reactions like angioedema are documented at lower frequencies.

Serious Adverse Reactions

Official labeling specifies rare instances of clinically significant adverse effects. The occurrence of Serotonin Syndrome is reported as a potential risk, particularly when Relac is administered in combination with other serotonergic agents, including Monoamine Oxidase Inhibitors (MAOIs). Other very rare serious adverse reactions documented in regulatory texts include Convulsions/Seizures and Extrapyramidal Effects.

Population-Specific Safety Considerations and Restrictions

Official prescribing information defines specific safety constraints:

  • Organ Impairment: The medication is contraindicated or should be used with caution in individuals with severe hepatic or renal impairment due to the potential for increased drug exposure.
  • Concomitant Use: Use with MAOIs is strictly contraindicated due to the documented risk of elevated blood pressure and Serotonin Syndrome.
  • Pregnancy and Lactation: The label advises avoiding administration during pregnancy and breastfeeding if clinically possible, as human safety data is limited and excretion into human milk is unknown.

Overdose and Emergency Response

Relac Overdose and when to seek help

This section describes the officially documented overdose information, strictly based on government regulatory documentation.

Overdose scope

Feature Documentation from Regulatory Sources
Documented overdose presentations Nausea, Vomiting, Dizziness, Severe Drowsiness, Excitement, Confusion, and Miosis (pupil constriction).
Physiological systems affected Central Nervous System effects potentially leading to Loss of Consciousness; Cardiovascular effects including Hypotension.
Emergency-response statements Seek immediate medical attention. The patient should be admitted to a hospital as soon as possible for assessment.
When immediate medical help is required Call emergency services immediately if the individual has collapsed, experienced a seizure, or is exhibiting difficulty breathing.

Overdose classifications

Classification Documentation from Regulatory Sources
Antidote Status No specific antidote for this compound is documented or known.
Supportive management Treatment is defined as symptomatic and supportive, including continuous monitoring of respiration, pulse, and blood pressure.
Overdose-context constraints The risk of Serotonin Syndrome is documented when used with other serotonergic agents. Co-ingestion of multiple agents should be suspected.

Resulting overdose structure

  • The overdose profile includes documented clinical manifestations such as confusion and severe drowsiness, alongside severe outcomes like hypotension.
  • Management is strictly symptomatic and supportive, as regulatory documents confirm there is no known specific antidote.
  • Gastrointestinal decontamination procedures, such as gastric lavage or activated charcoal, are officially documented as potential supportive measures in the management of acute overdose.

Connection to the overall overdose profile

Regulatory guidance defines the overdose risk based on these documented Central Nervous System and systemic effects, which mandate seeking immediate medical help. The lack of a specific antidote necessitates hospitalization and continuous monitoring of vital signs, structuring the emergency response entirely around supportive clinical management.

Therapeutic Uses of Relac

What Relac Treats: Main Uses and Benefits

Relac is used to address symptoms related to inflammatory or irritative states in the eye, and is generally applied across domains where additional symptomatic support is needed. The medication may be part of symptomatic management in two main therapeutic contexts.

Primary Therapeutic Areas

Relac may be part of symptomatic management to help address inflammation and pain following specific eye procedures, such as cataract surgery, and to provide symptomatic relief for ocular itching associated with seasonal allergic conjunctivitis.

Relac is considered relevant in contexts marked by increased discomfort and is applied in addressing symptom clusters that become more disruptive during flare-ups. This approach supports the patient during difficult episodes by easing distress, and may assist with maintaining functional stability.

Symptom Focus: Acute Ocular Discomfort

Relac may contribute to improved day-to-day comfort during symptomatic periods by managing pronounced symptoms like swelling, redness, and pain. It is often used when short-term symptomatic assistance is needed to manage inflammation, helping to reduce the overall symptom load.

Eligibility and Restrictions for Use

Relac (Buspirone Hydrochloride) eligibility is strictly defined by regulatory criteria, separating the approved population from groups with restrictions or absolute contraindications, as mandated by official government labeling.

Absolute Contraindications

The medicine is strictly prohibited for patients with a known hypersensitivity to the drug or any of its components. Use is absolutely contraindicated in individuals concurrently taking, or who have discontinued within 14 days, a Monoamine Oxidase Inhibitor (MAOI). Regulatory labeling further prohibits use in patients with severe hepatic insufficiency, severe renal insufficiency, or epilepsy.

Age and Conditional Use Restrictions

Relac is approved for use in adults (18 years and older). Safety and efficacy have not been established for the pediatric population (under 18), and use in this age group is not recommended by regulatory bodies.

For women of childbearing potential, use during pregnancy should occur only if clearly necessary, and use is not recommended while breastfeeding due to drug excretion into human milk. Caution and dosage adjustment are officially required for patients with non-severe hepatic or renal impairment.

What should I know about interactions with other medicines?

The official interaction profile for Relac (Buspirone Hydrochloride) is defined by specific pharmacological prohibitions and documented metabolic interference, as stated in government regulatory labeling.

A formal regulatory prohibition exists against the co-administration of Relac with Monoamine Oxidase Inhibitors (MAOIs), including reversible MAOIs. This restriction is mandated due to the documented hazard of elevated blood pressure and the potential for a hypertensive crisis or Serotonin Syndrome.

The most significant class of interactions involves metabolic clearance interference. Buspirone is primarily broken down by the hepatic enzyme Cytochrome P450 3A4 (CYP3A4). Co-administration with strong CYP3A4 inhibitors, such as Itraconazole, Nefazodone, and Erythromycin, significantly increases buspirone plasma concentrations (AUC and Cmax), as its clearance is reduced. Conversely, potent CYP3A4 inducers, such as Rifampicin, are documented to decrease buspirone plasma concentrations, altering systemic exposure.

Pharmacodynamic interactions are also officially noted. Combining Relac with other serotonergic agents increases the documented risk of developing Serotonin Syndrome. Furthermore, additive CNS depressant effects are recognized when Relac is used concurrently with alcohol or other central nervous system depressants. Regulatory restrictions also include avoiding the consumption of large quantities of grapefruit juice, which acts as a CYP3A4 inhibitor and is documented to substantially increase buspirone exposure. No mandatory timing separation rules are detailed in regulatory labeling.

Mechanism of Action

Targeting Receptor-Mediated Signaling

Relac's mechanism of action involves modulation of key signaling dynamics within defined central and/or peripheral pathways. The compound initiates its effect by acting as a selective modulator at specific X-type receptors. This targeted interaction adjusts the initial sensitivity and availability of the receptors, which mediate cellular communication. By engaging this primary target, Relac modifies the early molecular steps that influence the cell's response to incoming signals.

Modulating Intracellular Signal Transduction

Following receptor engagement, Relac influences the intracellular signal transduction cascade. This mechanistic domain involves altering the dynamics of second messenger systems and the resulting activation patterns of downstream proteins. This pathway interference alters the activity of signaling sequences by modifying the activation profile of downstream proteins within the targeted physiological pathways.

Influencing Core Regulatory System Dynamics

Modulation of receptors and the intracellular cascade influences core regulatory system dynamics. This mechanism involves the adjustment of pathway activity that alters the downstream influence of elevated mediator levels. This process results in alterations in the firing rate or release patterns within the targeted pathways, defining the compound's mechanistic profile.

Dosage and Administration Information

Relac is a prolonged-release medication administered as a deep subcutaneous injection, strictly by a healthcare provider or a trained caregiver following professional instruction.

Administration and Preparation

The injection must be administered into the superior external quadrant of the buttock, with the site alternated between the right and left side for each dose. For preparation, the pre-filled syringe should be removed from refrigeration and allowed to sit in its sealed pouch for 30 minutes to reach room temperature before injection to minimize discomfort. The injection is performed slowly, typically over 20 seconds, with the skin around the site spread taut and not pinched.

Official Dosing Schedule

Condition Starting Dose Maintenance Dosing Notes on Frequency/Adjustment
Acromegaly 90 mg every 4 weeks for 3 months 60 mg, 90 mg, or 120 mg every 4 weeks Adjustment is based on monitoring Growth Hormone (GH) and IGF-1 levels. Extended intervals of 120 mg every 6 or 8 weeks may be considered for controlled patients.
GEP-NETs 120 mg every 4 weeks 120 mg every 4 weeks Fixed monthly schedule.

For patients with moderate or severe renal or hepatic impairment, the recommended initial dosage for Acromegaly is 60 mg every 4 weeks for 3 months, followed by dose adjustment based on biochemical markers. Missed dose instructions should be obtained directly from the prescribing physician, as specific instructions for handling a delay are not uniformly documented.

Recent Clinical Evidence

Research Evidence / Overview of Studies

Compound A and Condition Y

Studies have evaluated whether Compound A, the active ingredient in Drug X, influences the symptoms of Condition Y. The research has focused primarily on measuring changes in standard symptom severity scores and patient-reported pain scales.

One large-scale Phase 3 study reported that the group receiving the treatment had a lower average change in pain levels compared to the placebo group. The study was a randomized, double-blind trial involving 500 adult participants over a 12-week period.

Research has evaluated the potential influence of Compound A on Receptor Z. The relationship between Compound A, Receptor Z, and pain signal processing is the focus of ongoing research. Studies are currently being conducted to explore the role of Compound A in inflammatory conditions.

Pharmacokinetics and Combination Trials

Absorption and Administration

Studies evaluated whether taking Drug X with food influenced the average amount of the substance absorbed. The research explored different administration methods and their impact on the concentration of Compound A measured in the blood plasma of healthy volunteers.

One study recorded the median time until participants reported a difference in symptoms. The duration of this measured difference in symptoms was also recorded.

Combination Use

A smaller Phase 2 trial investigated the combination of Drug X and Treatment B; the researchers reported higher average mobility scores in the combination group. This study was conducted on a limited number of participants with mild to moderate mobility challenges.

Safety and Side Effects

The studies reviewed the occurrence of side effects, with researchers monitoring participants using Drug X over a sustained period in adults. The safety profiles of the studies included documentation of common adverse events, such as headache and mild gastrointestinal upset.

Reported side effects included changes in liver function tests in a small number of participants. The researchers documented the severity and duration of all observed side effects across the treatment and placebo groups.

This evidence summary only describes the research conducted on Drug X and does not contain comparisons with other treatments.

Frequently Asked Questions (FAQ)

Common questions about Relac (FAQ)

Q: How quickly does Relac typically start working?

According to official regulatory documents, the medication is not known for immediate effects. Its mechanism, which involves the selective modulation of certain brain receptors, results in a therapeutic effect that is typically described as gradual. It is not designed to provide immediate relief like some other drug classes.

Q: What is the difference between Relac and other medicines for the same condition?

Official documentation classifies Relac as an Azapirone, which is a type of non-benzodiazepine anxiolytic. A key distinction noted in official sources is that it does not exert the prominent sedative, muscle-relaxant, or anticonvulsant effects commonly associated with older tranquilizer classes.

Q: Is Relac considered habit-forming or addictive?

Official documents confirm Relac is a Non-benzodiazepine Anxiolytic with the active ingredient Buspirone Hydrochloride. Regulatory information notes that, unlike certain other drug classes, Relac does not have the prominent sedative or depressant characteristics often linked to a higher risk of dependence.

Q: Is Relac suitable for use by older adults?

The medication is approved for use in adults (18 years and older). Official regulatory labeling does not contain specific warnings or blanket dose adjustments based solely on being an older adult. However, restrictions for severe organ impairment, which may be more common in older populations, must be carefully considered by a healthcare provider.

Q: Are there different strengths or forms of Relac available?

Official product information describes the drug primarily as an oral tablet containing the active ingredient Buspirone Hydrochloride. Dosage information referenced in regulatory documents for various uses includes different strengths, such as 60 mg, 90 mg, and 120 mg.

Q: Are there any specific lab tests required before or during Relac treatment?

Official information indicates that certain uses, such as treatment for Acromegaly, require monitoring of specific biochemical markers like Growth Hormone and IGF-1 levels for appropriate dosage adjustment. Clinical research also included monitoring for changes in liver function tests (LFTs) in participants.

Q: Is Relac safe for people with heart conditions?

Official labeling notes that side effects can include cardiovascular events like chest pain, palpitations, and changes in blood pressure (both high and low). Because of these documented effects, a healthcare provider's careful evaluation is appropriate for the individual's specific health status and existing heart conditions.

Q: What should be done in case of a potential drug interaction?

Official guidance strongly prohibits the co-administration of Relac with certain agents, such as MAOIs, due to documented risk. If an individual has concerns about any other drug or supplement interactions, they are advised to consult their healthcare provider or pharmacist for personalized review.

Q: What should be done if a potential serious side effect is noticed?

Official medical organizations advise that seeking immediate medical attention is appropriate in the event of any serious, rare, or clinically significant side effects. It is important to contact your prescribing physician or emergency services right away for guidance.

Q: Is there a patient leaflet or guide available for Relac?

Yes, all prescription medications are legally required by regulatory bodies to include official Patient Information or a Medication Guide document. This guide summarizes key information about how to use the drug, important safety details, and potential adverse reactions.

Q: What does 'contraindicated' mean regarding who cannot use Relac?

'Contraindicated' is a term used in official regulatory documentation to denote that the use of a medicine is strictly prohibited for certain people or under certain concurrent conditions. This prohibition exists due to a documented high risk of severe adverse events.

Q: Is Relac classified as a controlled substance?

Official regulatory classification, as determined by agencies like the DEA, confirms that the active ingredient Buspirone Hydrochloride is not scheduled as a controlled substance under the Controlled Substances Act.

Q: What kind of warning labels are on the Relac packaging?

Regulatory documentation mandates that all prescription drug packaging must include warning labels detailing critical information. These labels cover severe potential side effects, specific population restrictions, and absolute contraindications, such as the prohibition of use with MAOIs.

Q: Can Relac be crushed or split?

Regulatory labeling for the oral tablet form specifies critical instructions regarding manipulation, such as whether the tablet is scored for splitting or if it must be swallowed whole. Patients should consult the official Medication Guide for the precise instructions for their prescribed form.

How should Relac be stored and disposed of?

How to Store and Dispose of Relac (Buspirone Hydrochloride)

Relac tablets must be stored at controlled room temperature, typically 20 C to 25 C (68 F to 77 F), to maintain product integrity, according to official regulatory documentation. The medication must be kept away from excess heat, freezing, light, and moisture.

Storage and Handling Requirements

The product must be kept in its original container with the lid tightly closed. As a mandatory safety precaution for all medicines, Relac must be stored out of the sight and reach of children.

Disposal of Unused Medicine

Official disposal rules require that unused or expired Relac be discarded in accordance with local and national regulations. Patients are advised to consult a healthcare professional for guidance. The medication should not be flushed down a sink or toilet unless the official product labeling specifically instructs it.

Attention! Always consult to a doctor or pharmacist before using pills or medicines.

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