Lomon

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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 Lomon

What is Lomon? Defining the Benzodiazepine Anxiolytic

Property Description
Active ingredient Chlordiazepoxide
Form Oral Capsules, Injectable Solution
Pharmacological class Benzodiazepine, Anxiolytic
General purpose Management of severe nervous tension and anxiety
Origin Synthetic organic compound

Lomon is a pharmaceutical product containing the active ingredient Chlordiazepoxide (often administered as the hydrochloride salt), a substance classified within the benzodiazepine group of medications. This drug holds historical significance, recognized as the first benzodiazepine ever synthesized and approved for medical use. Chlordiazepoxide is a synthetic organic compound that functions as a Central Nervous System (CNS) depressant. Its fundamental action is supported by pharmacological studies confirming its ability to enhance the inhibitory, calming effects of the naturally occurring gamma-aminobutyric acid (GABA) neurotransmitter in the brain. This mechanism is clinically recognized for its ability to stabilize high levels of nervous system activity.

Lomon's Form and General Therapeutic Purpose

Lomon is prepared as a single-ingredient product, offered in two main forms: oral capsules for typical administration, and an injectable solution for intramuscular or intravenous use in acute settings. The primary therapeutic purpose of Lomon is to serve as an anxiolytic and a minor tranquilizer. The drug is used to help manage states characterized by significant nervous tension and apprehension. Clinical reviews emphasize its effectiveness in promoting generalized calm and imparting a skeletal muscle relaxant property, which contributes to the relief of both the emotional and physical tension associated with anxiety.

Regulatory References

  1. Chlordiazepoxide - StatPearls - NCBI Bookshelf
  2. Chlordiazepoxide: MedlinePlus Drug Information

What side effects are possible with Lomon?

Possible side effects and safety information for Lomon

The safety profile of Lomon, which contains Chlordiazepoxide, is primarily defined by effects related to its action as a central nervous system (CNS) depressant. All documented adverse reactions and safety statements are based strictly on official regulatory labeling.

Adverse Reaction Scope

The necessity of discontinuing treatment due to adverse effects is officially described as rare. The most frequently documented adverse reactions are related to the Nervous System:

  • Common Reactions (Frequency Classified): Drowsiness, sedation, unsteadiness, and ataxia (loss of coordination). These effects are often noted in regulatory documents as being dose-related and more likely to occur at the beginning of treatment.
  • System-Organ Classes Involved: Adverse reactions are also documented across other systems, including Gastrointestinal (nausea, constipation), Skin and Subcutaneous Tissue (skin eruptions, edema), and Psychiatric Disorders (paradoxical reactions, dependence).

Serious Safety Information

Certain serious adverse reactions are documented in official sources, though their occurrence is rare. These include blood dyscrasias (changes in blood cell counts) and signs of jaundice or hepatic dysfunction. Paradoxical reactions, such as excitement, rage, or aggression, have also been reported in psychiatric and hyperactive pediatric patients.

Population and Exposure-Related Patterns

Regulatory documents highlight specific safety considerations for patient groups and duration of use:

  • Older Adults: Geriatric patients are officially noted as being more susceptible to CNS effects like confusion and ataxia.
  • Long-term Exposure: The risk of physical and psychological dependence is documented to increase with the duration of treatment and higher doses. Abrupt discontinuation following prolonged use can lead to withdrawal symptoms.

Safety Restrictions

The medicine is officially contraindicated in patients with a known hypersensitivity to benzodiazepines and in individuals with myasthenia gravis. The label also contains mandatory statements regarding the increased risk of profound sedation and respiratory depression when the drug is used with other CNS depressants, such as opioids.

Overdose and Emergency Response

Overdose and When to Seek Help

The official regulatory documentation describes Lomon (Chlordiazepoxide) overdose through its effects on the Central Nervous System (CNS) and circulation.

Element Official Regulatory Description
Documented Manifestations Overdosage may present with somnolence, confusion, ataxia (loss of coordination), diminished reflexes, and progression to coma [FDA].
Severe Outcomes & Risk Factors Severe systemic effects include hypotension (low blood pressure) and respiratory depression. The risk of serious adverse outcomes, including death, is increased by the concomitant use of alcohol, opioids, or other CNS depressants [FDA].
Population Note Elderly or debilitated patients may exhibit greater sensitivity, with a higher risk for oversedation or confusion [FDA].
Emergency Actions Seek immediate medical attention if overdose is suspected, especially if symptoms include collapse, seizures, trouble breathing, or unresponsiveness [NIH].
Management Directives General supportive measures should be employed, including maintenance of an adequate airway and administration of intravenous fluids. Gastric lavage may also be performed [FDA]. Vital signs, including respiration, pulse, and blood pressure, should be continuously monitored.
Antagonist Caution The use of the benzodiazepine antagonist Flumazenil is associated with a risk of precipitating acute, life-threatening withdrawal reactions, such as seizures [FDA].

Therapeutic Uses of Lomon

Lomon is applied across domains where additional symptomatic support is needed to address symptoms related to heightened physiological activity and increased discomfort or tension, aligning with uses such as: anxiety disorders, acute alcohol withdrawal, and preoperative apprehension.


Key Therapeutic Applications

The medication is commonly used to help with symptoms that interfere with daily comfort, such as severe nervousness, apprehension, and physical restlessness associated with anxiety disorders. It is applied during phases of increased distress or discomfort, and its uses include providing support for severe and disabling anxiety, assisting with the stabilization of acute alcohol withdrawal, and supporting the management of preoperative apprehension.

Lomon is relevant for easing symptomatic relief, which may help patients cope more steadily with difficult episodes. It is applied in scenarios where additional symptomatic management of discomfort is required.

For patients experiencing the physical and emotional manifestations of severe anxiety, Lomon generally provides support that helps ease the overall symptom burden. For those in alcohol withdrawal, this use assists with maintaining a sense of stability during acute and disruptive episodes. In preoperative scenarios, it contributes to improved comfort during a temporary period of heightened symptoms.


Quick Fact: Relief for Nervous Tension

Quick Fact: Relief for Nervous Tension Description
Symptom Domain Symptoms that create noticeable physiological strain, particularly severe nervousness and physical restlessness.
Benefit May assist with maintaining a sense of stability when symptoms are more noticeable, supporting the patient during episodes of heightened discomfort.

Regulatory References

  1. DailyMed NIH Chlordiazepoxide Indications

Eligibility and Restrictions for Use

Eligibility Map: Who can and cannot use Lomon — Official Regulatory Information

This eligibility profile is based strictly on the official governmental labeling for the product identified in regulatory literature (dapagliflozin/Forxiga).


Populations for whom use is allowed (as stated in label):

  • Adults with Type 2 Diabetes Mellitus (T2DM).
  • Pediatric patients aged 10 years and older with T2DM.
  • Adults with symptomatic chronic heart failure or chronic kidney disease.

Populations for whom use is contraindicated:

  • Patients with a history of a serious hypersensitivity reaction to the medicine.
  • Patients with severe renal impairment (Estimated Glomerular Filtration Rate, or eGFR, less than 30 mL/min/1.73 m^2) for T2DM glycemic control.
  • Patients with end-stage renal disease (ESRD) or those on dialysis for T2DM glycemic control.

Age-related eligibility rules:

  • Children and Adolescents: Approved for T2DM treatment only for patients ge 10 years old.
  • Older Adults: Use requires caution due to a potentially higher incidence of adverse reactions related to reduced intravascular volume (e.g., hypotension).

Pregnancy and lactation eligibility status:

  • Pregnancy: Not recommended, particularly during the second and third trimesters.
  • Lactation: Not recommended while breastfeeding.

Connection to the overall eligibility profile: Regulatory documents define who can use the medicine by specifying the approved age groups (adults and children ge 10 for T2DM) and conditions (T2DM, heart failure, CKD). They exclude or contraindicate use in populations with severe hypersensitivity or specific disease severity, such as severe renal impairment, and formally state that use is not recommended in Type 1 Diabetes and during certain stages of pregnancy and lactation.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Interaction Scope

The official interaction profile for Lomon (Chlordiazepoxide) is primarily defined by Pharmacodynamic Interactions resulting in additive Central Nervous System (CNS) depression, according to regulatory labeling.

Medicinal product categories with documented interactions Specific interacting medicines (if explicitly listed) Mechanistic basis of interactions (only if stated in label)
Opioids, Alcohol (Ethanol), Other CNS Depressants None are listed individually; interactions are categorized by class. Additive central nervous system (CNS) depressant effects.

Official Interaction Restrictions

Co-administration with Opioids is subject to regulatory constraint due to the serious, documented risk of profound sedation, respiratory depression, coma, and death due to potentiation of effects. The use of Alcohol (Ethanol) is formally prohibited because it significantly increases the risk of severe CNS depressant effects and adverse outcomes.

Concomitant use with other CNS depressants, including sedatives, hypnotics, and psychotropic agents, can result in additive depressant effects. Use is also contraindicated in patients with known Hypersensitivity to chlordiazepoxide or any benzodiazepine.

Population-specific caution is explicitly noted for Elderly or Debilitated Patients regarding co-administration with other psychotropic agents, due to their increased susceptibility to adverse potentiating effects like oversedation or ataxia.

Mechanism of Action

Lomon is a nitrogen-containing bisphosphonate (N-BP) that exerts its pharmacological effect via inhibition of the mevalonate pathway within specific cell types. The compound is selectively targeted to sites of high mineral turnover, binding strongly to hydroxyapatite crystals within the bone matrix, ensuring its prolonged presence at the primary sites of action.

Once internalized by osteoclasts during bone resorption, Lomon directly interferes with critical intracellular signaling. It is metabolized to an analog that competitively inhibits the enzyme farnesyl pyrophosphate synthase (FPPS). The inhibition of FPPS prevents the necessary prenylation of small GTPase signaling proteins. The downstream cascade of this inhibition is the disruption of the osteoclast cytoskeleton, leading to the programmed cell death (apoptosis) of the osteoclast. The consequence is a reduction in the overall rate of bone matrix breakdown, thereby adjusting the balance of bone remodeling toward formation over resorption.

Dosage and Administration Information

Lomon (chlordiazepoxide) is provided in two main pharmaceutical forms: oral capsules for routine use and an injectable solution for acute management. The official routes of administration are oral (PO), and parenteral, specifically intramuscular (IM) or intravenous (IV). The injectable solution is generally reserved for acute, supervised clinical settings.

Dosing is highly dependent on the condition being managed and is administered in divided doses, three or four times daily. For typical use in anxiety, doses usually range from 5 mg to 25 mg per administration. For severe, acute conditions such as alcohol withdrawal, the initial dose may be higher, ranging from 50 mg to 100 mg (oral or parenteral), and the total daily oral dose may reach a maximum of 300 mg.

Use for anxiety must be limited to the shortest effective time, generally not exceeding four weeks, a period that includes the necessary dose tapering. The medicine must always be gradually tapered off upon planned cessation; abrupt stopping is contrary to procedure. A lower initial dose is required for older adults and debilitated patients, typically starting at 5 mg, two to four times daily. Oral capsules must be swallowed whole with water and may be taken with or without food.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Lomon

This overview summarizes the type of clinical research that has been conducted on Lomon (chlordiazepoxide) for its approved uses, focusing on what official studies and regulatory reviews have examined and where evidence remains limited. This information is purely descriptive and is not clinical advice.


Evidence for Use in Acute Alcohol Withdrawal Syndrome

The research base associated with the indication of Acute Alcohol Withdrawal Syndrome (AWS) includes numerous Randomized Controlled Trials (RCTs) and subsequent systematic reviews. Research in this area was studied for its use during the initial, acute detoxification phase—a time characterized by heightened symptom activity and systemic imbalance.

These trials researched examined outcomes related to systemic or functional imbalance, such as changes in the severity of withdrawal symptoms, which was measured using clinical scales like the CIWA-Ar. Studies also monitored the incidence of serious, episodic or acute changes, like seizures and delirium tremens. Findings described patterns observed in the studies where Lomon's pharmacological class was studied for its impact on these monitored outcomes during the short-term study period.


Evidence for Use in Anxiety Disorders and Severe Nervous Tension

Lomon was studied in research exploring short-term symptom patterns in individuals with severe nervous tension and anxiety, which are conditions characterized by fluctuating or episodic manifestations. The research includes short-term clinical trials which explored outcomes related to both physical discomfort and patient-reported outcomes describing perceived discomfort. Studies report how symptoms evolved in the observed populations during the defined time intervals, providing insight into short-term changes in symptoms.


Duration of Evidence: What is Known About Long-Term Use

A key limitation noted in regulatory summaries concerns the duration of clinical evaluation for Lomon. The formal clinical evaluations research explored short-term symptom changes, with evaluation periods typically lasting four months or less.

Long-term effects are not fully established because there is limited information for long-term outcomes in the formal clinical trial record. Regulatory documents explicitly note a lack of systematic clinical study data that evaluates effectiveness for periods exceeding four months of continuous use.


Research in Specific Patient Groups and Uncertainty

Lomon was evaluated in a range of populations, including adults with anxiety symptoms, and research also was studied for pediatric patients, specifically those aged six years and older, in research contexts involving fluctuating or unstable symptoms of anxiety. Data for certain groups, such as those with severe, co-existing liver impairment, remain insufficient.

The greatest gap relates to duration: there is limited information for long-term outcomes, particularly regarding the course of anxiety symptoms in the study populations beyond the initial few months. Additionally, while the data show patterns related to symptom change in group studies, the research does not determine whether an individual will respond similarly, as study results reflect the specific conditions under which they were conducted.

Key Studies & References

  1. Chlordiazepoxide Hydrochloride Capsule Prescribing Information, DailyMed (NIH)
  2. Alcohol-use disorders: diagnosis, assessment and management of harmful drinking and alcohol dependence, NICE Guideline CG115

Frequently Asked Questions (FAQ)

Common questions about Lomon (FAQ)


Q: Is Lomon a long-term or short-term treatment?

A: Regulatory documents indicate that Lomon is described as suitable for short-term use in managing anxiety symptoms. Official studies used for regulatory evaluation did not systematically track the medicine's effectiveness for periods of continuous use longer than four months. Therefore, official guidance often specifies use for the shortest effective duration.

Q: Is there a generic version of Lomon available?

A: Yes. Lomon contains the active ingredient Chlordiazepoxide, which is widely available as a lower-cost generic product. According to official product information, the medicine is marketed both under the Lomon brand name and as generic Chlordiazepoxide.

Q: Is it possible for Lomon to stop working after a while?

A: The long-term effectiveness of the medicine has not been systematically assessed in studies extending beyond four months. Evidence from official reviews suggests that if the medicine is used continuously beyond this period, the therapeutic effect on anxiety may decrease due to the development of tolerance.

Q: Do any official documents describe Lomon as a controlled substance?

A: Yes. According to the official U.S. label, Lomon (Chlordiazepoxide) is formally classified as a Schedule IV controlled substance. This classification is assigned by the DEA because the medicine carries risks of abuse, misuse, addiction, dependence, and withdrawal.

Q: Where can I find the full list of potential side effects for Lomon?

A: The most complete and comprehensive list of documented adverse reactions and safety warnings is available in the full Prescribing Information or the official product labeling (Summary of Product Characteristics). Regulatory agencies like the FDA and EMA publish these authoritative documents.

Q: Is it necessary to have certain lab tests done while taking Lomon?

A: Official warnings state that periodic monitoring is suggested when treatment is prolonged (protracted). This monitoring, as described in the label, includes certain laboratory tests, such as blood counts and liver function tests, due to documented risks of blood cell and liver abnormalities.

Q: Can Lomon affect my ability to drive or operate machinery?

A: Yes, official regulatory documents state that this medicine may impair the mental and/or physical abilities needed for performing potentially hazardous tasks, such as driving or operating machinery. The official label contains a formal warning regarding the performance of these tasks until the user is aware of how the medicine affects them.

Q: Are there any known drug-food interactions listed for Lomon?

A: Official labeling does not list specific interactions between Lomon and foods or drinks; it states that the medicine may be taken with or without food. However, the use of alcohol is formally contraindicated (advised against) due to the serious risk of severe central nervous system (CNS) depressant effects.

Q: Does Lomon have any known contraindications for people with liver impairment?

A: The official label notes that caution should be exercised in patients with impaired hepatic (liver) function. Because the drug is metabolized by the liver, regulatory guidance indicates that a reduced initial dosage is often necessary for patients with significant liver impairment.

Q: Does Lomon have known interactions with common over-the-counter pain relievers?

A: Regulatory warnings primarily focus on drug classes that cause additive CNS depression, such as opioids and other psychotropic agents. Specific warnings are not generally listed for common, non-CNS depressant over-the-counter pain relievers (like ibuprofen or acetaminophen).

Q: Are there different brand names for the medicine Lomon?

A: Yes, the active ingredient in Lomon, Chlordiazepoxide, has been marketed under different brand names (e.g., Librium) in various countries by different manufacturers and distributors. These brand names can vary significantly depending on the regulatory region.

Q: How long does Lomon take to start showing an effect?

A: Regulatory information indicates that the oral capsule has an intermediate speed of absorption in the body. Peak blood levels of the active ingredient are typically reached several hours after a dose is taken.

Q: Is it true that Lomon can affect weight or appetite?

A: Official regulatory documents confirm that loss of appetite has been included in the list of adverse effects reported during therapy. Changes in appetite are considered a documented side effect.

Q: Are there any specific vitamins or supplements that should not be taken with Lomon?

A: While the official product labeling does not list specific vitamins or common supplements as formal contraindications, it includes a general statement suggesting that users discuss the use of all supplements and herbal products with a healthcare provider.

Q: Why do some people online say Lomon caused a headache while others did not?

A: Headache is included in the list of adverse effects that have been reported during therapy, according to official documents. These effects are often noted as variable, meaning they may be experienced by some people but not by others.

Q: What is the typical timeframe before Lomon reaches its full effect?

A: The clinical studies used for regulatory review typically evaluated effectiveness during short-term treatment periods, generally lasting four months or less. Information on the long-term outcomes and the exact timeframe for achieving maximum stability is limited in the formal trial record.

Q: Does Lomon carry an FDA Black Box Warning?

A: Yes, the official U.S. label includes a Boxed Warning (often called a Black Box Warning). This serious warning outlines risks related to the co-administration of Lomon with opioid medicines, as well as the risks of abuse, misuse, addiction, dependence, and withdrawal reactions.

Q: Does Lomon interact with birth control pills?

A: Official interaction data suggests that oral contraceptives may prolong the half-life of Chlordiazepoxide in the body. The label states that close monitoring is recommended by healthcare professionals if these medicines are used concomitantly.

Q: Are there known environmental warnings or special handling instructions for Lomon?

A: Storage guidelines specify that the medicine should be kept in its original container, tightly closed, and protected from moisture and light. There are no specific environmental warnings, but the disposal of unused medicine should follow formal procedures for controlled substances (e.g., drug take-back programs).

Q: Are there any specific medical screening requirements before a person can start Lomon?

A: While the need for certain laboratory tests is advised during protracted treatment, regulatory documents do not specify mandatory pre-treatment screening requirements. However, the official label notes that close clinical monitoring is recommended.

How should Lomon be stored and disposed of?

How to Store and Dispose of Lomon (Chlordiazepoxide)

The official storage and disposal requirements for Lomon (Chlordiazepoxide) are strictly defined by regulatory labeling to maintain stability and ensure safety.


Storage Conditions

Lomon capsules must be stored at controlled room temperature, maintaining a range between 20 C and 25 C (68 F and 77 F). The container must be kept tightly closed and protected from excess moisture and light. Always store Lomon in its original container and keep it out of the reach of children and pets.


Disposal Requirements

As a controlled substance, unused or expired Lomon should be disposed of promptly via a formal drug take-back program. If a program is unavailable, follow the official procedure for household disposal: mix the medication with an unappealing substance, place it in a sealed bag or container, and discard it in the trash. Personal information must be removed or obscured from the container before disposal.

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

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