Cloranxen

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Cloranxen

Medically reviewed

Marina Burgos

Last updated on 10/01/2026

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 Cloranxen

What is Cloranxen?

Cloranxen is a medicinal product belonging to a class of drugs known as benzodiazepine derivatives. Its primary active ingredient is clorazepate dipotassium. This substance acts on the central nervous system by enhancing the activity of gamma-aminobutyric acid (GABA), a neurotransmitter that helps regulate nerve cell activity to produce a calming effect on the brain.

Therapeutic Use

As a benzodiazepine, Cloranxen is primarily utilized for its anxiolytic, sedative, and muscle-relaxant properties. It is commonly used in clinical settings to manage various conditions associated with high levels of tension and agitation.

The medication is most frequently indicated for:

  • Anxiety Disorders: Treatment of severe or disabling anxiety states that interfere with daily functioning.
  • Alcohol Withdrawal: Management of acute symptoms associated with alcohol withdrawal syndrome.
  • Adjunctive Therapy: Used in conjunction with other treatments for specific types of seizure disorders.

Mechanism of Action

Clorazepate dipotassium is a prodrug, meaning it is converted by the body into its active form, nordiazepam, after administration. Nordiazepam binds to specific receptors in the brain, facilitating the inhibitory effect of GABA. This process slows down neuronal transmission, which helps to alleviate the physical and psychological symptoms of anxiety and muscle tension.

What side effects are possible with Cloranxen?

Cloranxen (clorazepate) is a benzodiazepine that can cause side effects and requires careful use due to safety concerns.

Common Side Effects

Adverse reactions reported most frequently include central nervous system (CNS) effects such as drowsiness, dizziness, confusion, unsteadiness (ataxia), and fatigue. These effects may impair psychomotor performance, meaning patients should be cautious about driving or operating machinery until they know how the medication affects them. Other common effects can include headache and dry mouth.

Serious and Important Safety Information

Dependence, Abuse, and Withdrawal

Cloranxen carries a risk of abuse, misuse, and addiction, which can lead to overdose or death, especially when combined with other substances. Continued use can lead to physical dependence. Abrupt discontinuation or rapid dose reduction may cause life-threatening withdrawal symptoms, including seizures, tremors, muscle cramps, and psychotic reactions. The dose must be reduced gradually under medical supervision.

Drug Interactions

Concomitant use with opioids (e.g., strong pain relievers, cough medicines) significantly increases the risk of profound sedation, respiratory depression, coma, and death. Alcohol also enhances the CNS depressant effects of Cloranxen and should be avoided.

Mental Health and Paradoxical Reactions

The use of Cloranxen may be associated with the emergence or worsening of depression and suicidal thoughts or behavior. Paradoxical reactions, such as anxiety, agitation, irritability, aggression, and hallucinations, have also been reported, particularly in children and the elderly.

Contraindications

Cloranxen is generally contraindicated in patients with a known hypersensitivity to benzodiazepines, acute narrow-angle glaucoma, severe respiratory failure, severe liver failure, and myasthenia gravis.

Overdose and Emergency Response

Overdose involving Cloranxen (Dipotassium Clorazepate) is officially documented as presenting with varying degrees of Central Nervous System (CNS) depression. Manifestations can range from mild symptoms such as drowsiness, mental confusion, and lethargy, to more severe clinical signs including ataxia, hypotonia, hyporeflexia, and potentially coma. Effects on the pulse and blood pressure are generally minimal unless the overdosage is extreme. The elderly and very young children are documented as being more susceptible to the CNS depressant action of the drug.

The regulatory documents define the primary life-threatening risk as the co-ingestion of the medication with other CNS depressants, particularly alcohol and opioid medicine. Such combinations can result in profound sedation, severe respiratory depression, coma, and death, which mandates immediate action. Therefore, official guidance requires individuals to seek emergency medical attention or contact a Poison Help line immediately upon suspected overdose.

Management is defined as symptomatic and supportive treatment. Officially documented interventions may involve gastric lavage and the use of activated charcoal, with special attention given to respiratory and cardiovascular functions. No specific antidote is known for this compound. The regulatory documents note that the specific benzodiazepine antagonist, Flumazenil, carries a warning regarding the risk of seizures, restricting its routine use.

Therapeutic Uses of Cloranxen

Cloranxen is a medication that provides supportive symptomatic relief in several distinct clinical domains marked by heightened neurological and psychological distress. The medication is used across three therapeutic domains, helping to ease the overall symptom burden in conditions where symptoms may intensify temporarily.

The primary uses include application for addressing severe and disabling anxiety symptoms, symptomatic relief during acute alcohol withdrawal, and use as an adjunctive therapy for partial seizures (focal onset epilepsy).


Easing Severe Anxiety and Agitation

This medication is commonly used to help with the management of severe anxiety, including pronounced pathological worry and intense inner tension. It is often applied when symptoms create noticeable functional strain, and the core benefit is providing symptomatic relief that helps patients cope more steadily with difficult, acute episodes.


Symptomatic Context

Cloranxen is applied in clinical settings that involve acute or unstable symptom patterns, specifically for the symptomatic relief of acute alcohol withdrawal, addressing symptom clusters of increased neurological activity like severe tremor and agitation. Its use assists with maintaining functional stability during phases when symptoms become more noticeable. It is also relevant for easing symptoms related to recurrent partial seizures.

Quick Fact: Supportive Symptom Management

Cloranxen is relevant for easing symptoms related to: severe psychological distress, acute neurological hyperactivity in withdrawal, and recurrent focal seizure activity. It assists with maintaining functional stability during symptomatic periods.

Eligibility and Restrictions for Use

The official regulatory documents define strict eligibility rules for Cloranxen (Dipotassium Clorazepate) based on population characteristics and pre-existing health status.

Contraindicated and Restricted Populations

Cloranxen is contraindicated and must not be used in patients with a known hypersensitivity to the drug or those diagnosed with acute narrow-angle glaucoma. Some regulatory bodies also list myasthenia gravis as a contraindication.

Use is not recommended in patients with depressive neuroses or psychotic reactions. Patients with a history of alcohol or drug dependence require specific caution and monitoring due to the potential for abuse.

Age and Organ Function

The medicine is not recommended for use in patients less than 9 years of age due to insufficient clinical experience. Use is permitted for adjunctive partial seizure therapy in children aged 9 and older. Elderly or debilitated patients require special precaution and a small initial dose.

The label mandates that usual precautions must be observed in patients with impaired hepatic (liver) or renal (kidney) function.

Reproductive Status

Cloranxen should not be given to nursing mothers as the active metabolite is excreted in breast milk. Use is advised to be almost always avoided during the first trimester of pregnancy.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Cloranxen (Dipotassium Clorazepate) has an official interaction profile focused on additive effects on the central nervous system (CNS) and metabolic clearance modification.


Formal Pharmacodynamic Restrictions

Co-administration with opioids carries the highest regulatory restriction, including a Boxed Warning, due to the documented risk of profound sedation, respiratory depression, coma, and death from additive CNS depressant effects. Similarly, combining Cloranxen with alcohol or other CNS depressants (such as certain sedatives, hypnotics, and tranquilizers) may result in intensified sedative outcomes. When used as an adjunctive treatment, co-administration with other Antiepileptic Drugs (AEDs) carries an official warning regarding an increased risk of suicidal thoughts or behavior.


Exposure-Altering Pharmacokinetic Interactions

The metabolism of the active substance is subject to alteration. Co-administered enzyme inhibitors (e.g., cimetidine) can cause increased plasma concentrations of the active metabolite, Nordiazepam, by reducing clearance. Conversely, enzyme inducers (e.g., phenytoin or carbamazepine) may accelerate metabolism, potentially leading to decreased therapeutic effects due to reduced exposure. These interactions are based on the drug's metabolic clearance pathway.


Population-Specific Considerations

Official regulatory documents note that in both elderly patients and individuals with hepatic impairment, the clearance of the drug is slower. This results in a documented risk of excessive drug accumulation or increased effects due to the reduced rate of removal from the body.

Mechanism of Action

Cloranxen functions as a highly selective, non-competitive antagonist at the P2Y12 receptor, primarily located on the surface of platelets. This molecular interaction initiates the cascade of mechanism.

The binding of Cloranxen to the P2Y12 receptor prevents the downstream binding of ADP. This inhibition consequently suppresses the Gi-protein-mediated signaling pathway. Downstream, this action decreases the overall activity of the cAMP/PKA system within the platelet cytosol.

By modulating the intracellular signaling pathway, Cloranxen reduces the expression of the GPIIb/IIIa receptor complex on the platelet surface. This ultimately leads to a decreased ability of platelets to aggregate and form a stable thrombus.

Dosage and Administration Information

How Cloranxen is Used: Administration Guidelines

Cloranxen, containing dipotassium clorazepate, is for oral administration using the tablet or capsule forms. The instructions for its use are defined by the patient's condition, involving specific patterns for dose, frequency, and duration.


Dosing and Frequency Patterns

The medicine is typically administered in divided doses throughout the day or, for certain anxiety regimens, as a single dose taken at bedtime. Standard adult dosing for anxiety ranges from 15 mg to 60 mg daily. For acute alcohol withdrawal, a multi-day tapering schedule is used, beginning with a higher dose on the first day (maximum 90 mg) and gradually reducing the total amount on successive days until the patient’s condition is stable.

For adjunctive use in partial seizures, the maximum initial dose for adults is 7.5 mg three times daily, with weekly increments not exceeding 7.5 mg to maintain procedural consistency.

Administration Contexts

Parameter Administration Guideline
Timing in relation to meals May be taken with or without food (no specific meal restriction is listed).
Age-group rules Not recommended for children under 9 years of age. Older or debilitated adults require a lower initial dose, such as 7.5 mg to 15 mg daily, with gradual adjustments.
Course duration Intended for short-term relief of anxiety; efficacy has not been systematically evaluated beyond four months. For alcohol withdrawal, the drug is discontinued as soon as the patient's condition is stable.
Missed dose If a dose is missed, it should be skipped if it is almost time for the next scheduled dose, and double doses must be avoided.

Recent Clinical Evidence

Cloranxen: Overview of Clinical Studies


Evidence for Use in Severe Anxiety Symptoms

The evidence base for Cloranxen (Dipotassium Clorazepate) includes short-term Randomized Controlled Trials (RCTs). These studies were applied to adults experiencing severe anxiety, exploring how symptoms evolved by using standardized measures, such as the Hamilton Anxiety Scale, to assess changes in symptom severity scores. Findings describe patterns observed in these studies where individuals receiving the compound reported measurable symptomatic changes over a few weeks or months. However, the follow-up durations were limited. The research record indicates a lack of systematic clinical studies assessing management for anxiety over extended periods, specifically for use exceeding four months.


Evidence for Use in Acute Alcohol Withdrawal

Research exploring Cloranxen's role relies on evidence compiled from systematic reviews of controlled trials. The evidence base is often compiled from class-level data related to benzodiazepines. Studies monitored outcomes such as the prevention of seizure events and the management of delirium in adults presenting with acute withdrawal signs. The findings describe patterns observed in the studies where the use of this class of medication was observed in contexts addressing neurological hyperactivity. Comparative evidence is lacking for the specific outcomes of Cloranxen versus other individual compounds in this context, and data are limited when trying to distinguish specific differences between them.


Evidence for Use as Adjunctive Therapy for Partial Seizures

Cloranxen was evaluated in research for its role as an add-on therapy for partial seizures, which are conditions characterized by fluctuating or episodic manifestations. The evidence includes regulatory-cited adjunctive clinical trials and information derived from long-term retrospective clinical reviews. Studies explored how symptoms evolved in populations including individuals aged 9 years and older by quantifying the change in seizure frequency. Some patients were observed in long-term treatment scenarios, and this research describes group patterns related to the documentation of long-term exposure.


Summary of Key Evidence Gaps

Across the evidence landscape, several limitations are noted. The follow-up durations were limited in many core short-term efficacy studies, meaning that long-term outcomes are not fully established for several key uses. For instance, limited information is available from structured clinical trials specifically evaluating outcomes in the very elderly population. Furthermore, evidence quality varies across studies, with some relying on older methods or retrospective documentation. The findings describe group patterns, not personal outcomes.

Frequently Asked Questions (FAQ)

Common questions about Cloranxen (FAQ)

Q: What is the official safety classification for Cloranxen use during pregnancy?

According to regulatory information, the use of Cloranxen during pregnancy is advised to be almost always avoided, particularly in the first trimester. This caution is based on historical data suggesting a possible risk of congenital malformations associated with this class of minor tranquilizers. This decision-making requires consultation with a healthcare provider.

Q: How long does it typically take for Cloranxen to start having a noticeable effect?

Cloranxen is designed as a prodrug, which means it needs to be metabolized by the body to become fully active. Official information states that its primary therapeutic compound, Nordiazepam, appears quickly in the bloodstream after the drug is taken orally. This rapid conversion is what initiates the depressant effects on the central nervous system.

Q: What is the half-life of Cloranxen in the human body?

The time it takes for the concentration of the medication to be reduced by half in the bloodstream is called its half-life. Official regulatory documents indicate that the primary active substance resulting from Cloranxen has a half-life of approximately 40 to 50 hours (about 2 days). This long half-life is a key characteristic of the medication’s overall duration of action.

Q: Do the initial side effects of Cloranxen usually lessen over time?

Official guidance suggests that the body can develop tolerance to some of the initial central nervous system side effects. This means that effects like drowsiness, lethargy, or unsteadiness (ataxia) may naturally become less noticeable with continued use over time.

Q: Can Cloranxen be taken safely with common over-the-counter pain relievers?

The most serious warnings in the regulatory labeling are reserved for combining Cloranxen with central nervous system depressants or opioids. The official interaction profile does not list specific interactions with common non-sedating over-the-counter pain relievers, such as acetaminophen or ibuprofen.

Q: Is Cloranxen considered a controlled substance by regulatory bodies?

Yes, the active ingredient in Cloranxen, Clorazepate, is recognized by the U.S. government as a Schedule IV controlled substance. This classification indicates that the medicine has accepted medical uses but carries a defined risk for abuse, dependence, and misuse.

Q: How long after stopping Cloranxen can it still be detected in the system?

Based on the 40- to 50-hour half-life of the active metabolite, it generally takes several days for the medicine to be cleared from the system. Official pharmacological guidelines suggest that the medicine is largely cleared from the body approximately 8 to 10 days after the last dose.

Q: What kind of monitoring is typically required while taking Cloranxen?

For patients who take Cloranxen for prolonged periods, regulatory precautions advise that certain monitoring procedures are typically necessary. This usually includes periodic checks of blood counts and liver function tests to help monitor the patient's condition.

Q: Are there reported drug-food interactions beyond just alcohol and grapefruit?

Official regulatory documents primarily focus on drug-drug interactions and the prohibition of alcohol. The core product label does not list any other specific food products that must be avoided when taking this medication.

Q: Does the efficacy of Cloranxen change with age?

Official regulatory texts note that in older adults, the body clears the medicine more slowly, which can lead to accumulation. To account for this, the initial dose is typically set lower, which helps maintain the intended therapeutic effect while minimizing the risk of adverse outcomes.

Q: Does Cloranxen interact with common blood pressure medications?

Regulatory-cited interaction data indicates that combining Cloranxen with some antihypertensive (blood pressure lowering) medications may result in additive hypotensive effects. This means the combination could potentially lower blood pressure more than expected and is a factor that must be discussed with a healthcare provider.

How should Cloranxen be stored and disposed of?

How to Store and Dispose of Cloranxen?

Clorazepate dipotassium (Cloranxen) must be stored according to specific regulatory requirements to maintain its stability and safety. The product requires storage at Controlled Room Temperature, which is 20 C to 25 C (68 F to 77 F), with protection from both light and moisture. The medicine must be kept in a tightly closed container.

Safety & Handling Requirement
Child Protection Store out of the reach of children.
Controlled Substance Keep the medication in a safe place to prevent theft.

Disposal of unused product should prioritize an approved drug take-back program. If this option is unavailable, the medicine is to be mixed with an undesirable substance (such as dirt) and sealed in a container before discarding in the household trash. The product must not be flushed down the toilet.

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

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